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Why did the Internet Almost Crash Last Week?

For those of you that know the normal side of me and my professional life, you know that I’m pretty much one of the ultra technical network geeks out there.  Since I started this blog to be a one-stop-shop for my thoughts and ramblings, I thought I’d share this detailed analysis with you to show what happened with a problem you PROBABLY knew nothing about.  It’s good insight into what I deal with every day and just what my work is all about.  I’ll warn you though, it’s a technical analysis, but if you can get through it I am sure you’ll find it very enlightening.

By Earl Zmijewsi at Remesys:

This post is a follow-up to our blog last week about a small Czech provider briefly causing global Internet mayhem via a single errant routing announcement. In this incident, SuproNet (AS 47868) announced its one prefix, 94.125.216.0/21, to its backup provider, Sloane Park Property Trust (AS 29113), with an extremely long AS path. We’ve gotten more feedback about this entry than any other in recent memory, so we thought we’d try to answer some of the questions that were posed both here and elsewhere, as well as provide some clarification about exactly what went on. The questions we try to address include:

  • How could anyone be this dumb?
  • Why did this cascade throughout the planet?
  • Can you provide more details about the impact and its spread?
  • How do we prevent this from happening again?

How could anyone be this dumb?

I’ll admit that this was my first thought. And since this incident interrupted my lunch, I was only too happy to join the mob. In hindsight, my reaction was due to the fact that my router experience is largely limited to Cisco gear and their router software, known as IOS. For example, suppose SuproNet was using a Cisco and wanted to prepend their ASN (47868) an additional four times to announcements to a particular provider. They could use something like the following, where the string of x’s refers to the IP address of the provider’s router. Notice that I had to explicitly list 47868 four times.

     neighbor xx.xx.xx.xx route-map longerisbetter out
     route-map longerisbetter permit 10
       set as-path prepend 47868 47868 47868 47868

The is a common way of prepending in Cisco IOS, so I naturally thought, who would be so dumb as to type (or cut-and-paste or whatever) their own ASN hundreds of times into a configuration for a router? Who? The only problem with this line of reasoning is that SuproNet wasn’t using a Cisco. They were apparently using a router from MikroTik, a router vendor from Latvia, as first reported in this Czech blog. MikroTik obviously targets the Czech market since they have a local language web page and domain.

So how do you prepend on a MikroTik? According to their on-line manual, you set the following variable in an appropriate configuration mode.

bgp-prepend (integer: 0..16) - number which indicates how many times to prepend AS_NAME to AS_PATH

So if SuproNet was thinking “Cisco IOS”, they might have typed “bgp-prepend 47868” to prepend 47868 once. However, this would be a mistake as this router is expecting a count, not an ASN. So at this point, it would be reasonable to expect the MikroTik to report something like “value out of range”. Let’s assume they didn’t do any range checking on the input value and let’s assume they devoted one byte (8 bits) to store this value. One byte can represent all integers from 0 to 255. So what happens when you try to stuff something larger, like 47868, into one byte? You get 47868 modulo 256 (i.e., the remainder after dividing of 47868 by 256), which equals 252. As Mikael Abrahamsson first noticed, this was the exact number of prepends of 47868 he was seeing. So I went back and looked at the copious number of announcements we saw of SuproNet’s prefix and guess what? Every single one had 252 prepends of 47868, leading me to conclude that this was the exact number sent out by SuproNet. Originally I was thinking the number of prepends probably varied based how these long paths were being truncated and that it was this random truncation that was causing part of the problem.

And using this clue, Ivan Pepelnjak was able to spell out exactly what happened in his blog. As it turns out, the reason for all those routing resets and general instability was due to a previously unknown Cisco bug involving AS paths close to 255 in length. If you try to prepend to a long path that you receive and by doing so, create a path longer than 255, you are toast. So the maps we gave in our our last blog were more of an indication of Cisco market share (at least among prependers), rather than the propensity of outdated routers. Kudos to Ivan for figuring this out.

In summary, we have a situation where a single careless operator in the Czech Republic tickled one bug (i.e., lack of bounds checking in the MikroTik router) that in turn tickled another bug (i.e., a problem with long AS paths on a Cisco). And the result was global Internet instability due to prevalence of Cisco gear in the market. But in fairness to MikroTik we note that Mathias Sundman observes that bounds checking does now exist in version 3.20 of their router software.

Why did this cascade throughout the planet?

Short answer: There is a bug in Cisco IOS with regard to long AS paths and lots of folks use Cisco gear. Longer answer: Most ISPs apparently do not filter out announcements with long AS paths. As we noted in our previous blog on this topic, we are all fairly close to one another on the Internet and there is really no reason to be seeing excessively long AS paths. Such paths only indicate a problem or a clueless operator or both, and can be safely discarded. The fact that they were not dropped allowed them to tickle this bug on many Cisco boxes along the way.

Since we are all just a few AS hops away from each other, the problem only occurred because the paths originated from SuproNet were so close to 255. This allowed them to reach the core of the Internet and continue onto other edge networks before exceeding the 255 path length boundary. It was only when they did that all hell broke loose, far away from the original source of the problem. As Andree Toonk provides on this page, there are apparently others who have made the same mistake on MikroTik routers. AS 20912, Panservice of Italy, is doing it as of this writing, but 20912 modulo 256 is only 176 and these announcements are apparently not causing a problem.

Can you provide more details about the impact and its spread?

This was an easy one, as Renesys monitors every prefix (network) seen on the Internet and computes their stability over time. We also geo-locate them as accurately as possible. Thus we can see events like this propagate through the planet and Google Earth provides an excellent way of performing the visualization. We used it to show every newly unstable prefix in during the hour before and the hour of the incident. Here are a few composite images taken from Google Earth of a few regions and an indication of all the unstable prefixes seen during the 2-hour period. We start with the US where the impact was the greatest.

Next up is the heart of South America, where Cisco obviously needs to send some sales folks. (Before someone points out the population density of South America relative to the US, we noted in our last blog that South America was the least impacted continent on a percentage basis.)

Finally, we take a look at Europe, where all the trouble started.

How do we prevent this from happening again?

This one is really about assigning blame and there is plenty to go around. But before we get too caught up with that, keep in mind that this was really the perfect storm. As of today, Renesys has observed 31,188 unique non-private ASNs on the Internet over the last few weeks. If you compute modulo 256 of each of them, you get 731 with associated values ≥ 250 or 2.3% of the total. There is nothing special about 250. However, the likelihood of a problem decreases significantly as the values get lower, and 250 seems like a reasonable cutoff, given typical path lengths in the Internet. And there are still only 1,919 ASNs whose modulo 256 value is ≥ 240, or 6.2% of the total. Thus for this event to have occurred at all, besides the bugs in the router software of two vendors, only a few percent of the ASes on the Internet could have possibly initiated the meltdown, but only if they had a careless operator and an obscure Latvian router with outdated software. How likely was that?

As for the blame, network operators (SuproNet) should obviously read their router documentation and test any proposed changes in a lab environment to see if they get the results they expect. Router vendors should check bounds on input parameters (MikroTik) and on boundary conditions (Cisco). ISPs should filter out obvious useless garbage, like ridiculously long AS paths and unrouteable (private) IP addresses. They obviously don’t, given the scope of the event. And who designed this BGP routing protocol anyway? What were they thinking?

Seriously, the reason for the success of the Internet is because it is not under the control of any one government or company. Because of this fact, it is both cheap and ubiquitous. But because there is no centralized control or authority, we are largely at the mercy of the weakest link. Sure there is plenty we can do to prevent things like this from happening again, but there will always be the next perfect storm. Who could have guessed something like this could have happened? You won’t be able to guess the next one either. The happy ending to this story is that the community quickly rallied and worked together to both identify and mitigate the problem. No meetings were held, no bailouts were requested and not a single lawyer was needed to draft an agreement. The Internet was back to normal in short order.

February 22, 2009 Posted by | Technical | , , , , , , , , , , | Leave a comment

Surgical Scrub


Karen walked confidently into the locker room. She’d been an O. R. nurse now for about five years, and she still thought it was the best part of the whole nursing profession. Ever since her very first time in the O. R. as a nurse, though, she’d noticed a certain, well, strangeness, about the way it made her feel. Worse, in the last year since she started the anesthesiology track at the university, that feeling had become stronger. She contemplated this some more as she grabbed a set of scrubs and sat down in front of her locker and began removing her street clothes. She kicked off her loafers and began wriggling out of her jeans. As she pulled on her scrub pants, she wondered if any of the other nurses with whom she’d ever worked felt the same way. Well, there’d been at least one, she was fairly certain.

She thought back to that very first time in the O.R. She had been working on her RN degree, holding down a full-time job, and trying to keep her head above water through it all. Tired and sore, she had not exactly looked forward to being on her feet for several more hours after work, and in truth she was rather dreading it, what with all the mystique surrounding the operating room. And then there were the rumors about one of the O.R. nurses…

But it was required, and it was available now after one of the other students had taken sick at the last moment. No time even to think about it, really.

She’d sat through the requisite seminars on asepsis and didn’t think much more about the whole scene. The department figured that the best training was on-the-job training, and after three more BORING seminars on sterilization and post-op infections and whatever else, she was ready. But nothing had prepared her for the woman who met her as she walked into the scrub room that first time…

She walked into the locker room, not really certain of where she was going and certainly not of what to expect or what she should do. Lost, almost?

“May I help you?” a woman’s voice asked authoritatively, as though she really were not supposed to be there. Karen turned to see the speaker, a tall, athletic-looking woman in green scrubs and a cap. A mask hung untied under her chin. Karen felt immediately intimidated.

“Uh, yeah,” she began. “My name’s Karen Fl-” “Yes, you’re here in Emily’s place. She gave Karen a hard stare, as though she were looking at something disagreeable. “Right, then,” she continued. “Scrub clothes are here on this shelf and caps and masks there as you go into the scrub room. Get dressed; Maggie will be out in a moment to help you.” With that she turned and was gone.

Karen shook her head, trying to clear the memory. She unbuttoned her shirt and let it fall to the floor. She happened to glance in the mirror at the end of the row of lockers and gazed absently at her reflection. Clad now just in green surgical pants and her bra, she looked over herself. The past couple years of aerobics and karate were really toning up her body, she observed as she turned from side to side to get a good look at herself. Her breasts didn’t sag at all, even without a bra. Unconsciously she stood even straighter and thrust her chest out slightly. Instantly she felt her nipples harden, and she was suddenly acutely aware of where she was. A tinge of redness crept into her face. She turned from her image in the mirror and picked up her scrub top, slipping it over her head and tucking it into her pants. “Why does this have to happen NOW?” she wondered as she pulled the drawstring tight and tied it.

She was a registered nurse, and this was another day at work. Doing something she really liked, really, but nothing more. She picked up her street clothes and hung them in her locker, then headed for the scrub room. At the door she picked up a pair of shoe covers. As she bent to slip them on, she felt the fabric of her top stretch across her breasts, further compressing her already-hard nipples. She tried to ignore it as she tucked her short-cropped hair up into a cap, but it was no use. She reached for a mask, and felt butterflies in her stomach as she stretched the bottom edge snugly under her chin and tied it high on her head. The memory came flooding back.

The word “Dominatrix” or “Mistress” sprang suddenly to her mind. But now she was gone, leaving Karen in the charge of an older nurse, probably in her 50s. Karen suddenly didn’t want to be there, but it was too late now. The nurse handed her a cap, with instructions to be sure to get all her hair under it. “There we are. That’s good,” she said. “Now turn around for me.

“This is the mask, dear,” she explained, as she tied the mask tightly over Karen’s face. The mask drew tightly over her nose and mouth and a shiver went down her spine, clear to her tailbone. The nurse’s fingers lightly brushed the back of her neck as she finished tying it.

“We mustn’t spread our germs about, you know.”

Oh, how she had hated that.

“Very nice, dear. I’ll put mine on, then we’ll need to get you scrubbed.” She quickly tied on her own mask, and then, “Step to the sink for me, please.” She began lecturing about the importance of a good surgical scrub, and Karen soon found herself in orange soap suds practically up to her armpits. Karen began to drift, enjoying the sensation. But something seemed a little odd about it, the way the other nurse’s hands were all over her own, gently scrubbing, squeezing, caressing… Inexplicably, Karen felt herself growing more and more aroused. The feeling grew as they finished up and dried their hands.

Again she shook her head. She finished tying her mask, and stepped into the scrub room. Soon she finished and turned off the water with her elbow, then looked around for the scrub nurse. The room was empty. She turned toward the window into the O.R., and caught her own reflection in the glass. Masked and a cap, her hands up in front of her still dripping, the eyes in the glass stared back at her above that mask. Her thoughts were turning to that first time again when suddenly the door to the O.R. opened. Another nurse came in, gowned and gloved.

“Hi, Karen,” a familiar voice said. It was her roommate, Jenny.

“Hi, Jenn. Seen the scrub nurse?” Almost as an afterthought, she added, “What’re you doing here, anyway?” Jenny worked the pediatric ward.

“Oh, a little girl from my floor went in earlier, and she really wanted me there with her. Pretty scared,” she explained. “Liz is still in there,” she said of the scrub nurse. “You’re kind of early, aren’t you?”

“A little. Couldn’t sleep. Hey, could you help me finish up here?”

“Sure. Gown & gloves?”

Karen merely nodded, and watched as Jenny took out a gown and unfolded it for her. She held the gown for Karen as she thrust her arms into the sleeves. Suddenly she found herself fighting off a strong urge to wrap her arms around Jenny and… And what?!? Get a grip woman, Karen demanded of herself. The gown on, she turned around for Jenny to tie it.

Jenny took a package of gloves and ripped it open. Karen held her hands out as Jenny slipped first one, then the other, expertly over her outstretched hands. The Memory was coming back.

“Uh, Jenn?” Karen began as Jenny finished with her gloves. She felt like a fool, or an outcast, maybe a freak. She struggled to keep her voice even. “Will you be home tonight?”

“Yeah. You okay?” Jenny sounded concerned as she began removing her own gloves.

“I’m fine. I just need to… I mean, I’ve been…” Shit, Karen thought. “I don’t know. Just talk, I guess.” The last part she blurted out, as though it were a relief to be done with it.

“Okay,” Jenny answered. “I’ll be back by the time you get there.” She looked with some concern at her good friend. “Anything in particular?”

Karen rallied herself. This can wait, she ordered herself. “No. See you tonight.” She grinned behind her mask at Jenny. Nice friend, she thought to herself, and backed through the O.R. door, her gloved hands in the air in front of her.

“Gloves, now, hold your hands up for me… There. Don’t touch anything now; remember sterile to sterile and you’ll be just fine….” They entered the O.R, and Karen felt her heart going a mile a minute.

Maggie gave her a brief tour, but soon they began setting up. Then the patient was wheeled in by a couple of orderlies. Maggie droned on about sterile fields and what not, and draped the patient and scrubbed the area while talking.

Karen watched the anesthetist (a woman) put him under – the way she held the mask, tilted his head back. She felt as though she were in a trance, and she could feel her pussy getting damp. He’s completely in your power now, isn’t he, thought Karen.

And she was horny now, and couldn’t even TOUCH her crotch or tits. She felt her nipples hardenÖOh, how badly she wanted to touch, pinch, them. She looked at her hands, encased in the latex surgical gloves. What would it feel like to masturbate with these on? she thought fleetingly. The sudden intimacy and the clearness of the thought shocked her back into reality.

Half an hour later everyone was in place and ready. Karen took a deep breath. She knew what was coming as she walked over to the table, and she looked forward to it with a perverse sort of fascination. She took her seat on the stool at the patient’s head. She looked at her, an athletic young woman in her twenties, in for a knee operation because of an accident. Her name was Angie.

“How’re you doing?” Karen asked in a voice no one else could hear.

“Nervous,” was all she could manage.

“I know,” she began. “Just about everyone is, but you’re in good hands.” She picked up the anesthesia mask and shifted slightly on her stool as her pussy contracted involuntarily. “I’ll take good care of you.”

She tilted the woman’s head back and placed the mask firmly over her nose and mouth. “Just relax now and take some deep breaths for me.”

Angie looked up into Karen’s masked face and closed her eyes.

“Here we go, Angie,” Karen whispered, lightly caressing the woman’s cheek. Karen pressed the valve on the mask, flooding Angie’s lungs with the power anesthetic.

And so it went, and very soon Karen shifted into her professional mindset, banishing entirely all the sexual connotations she’d brought to her vocation over the last several years.

* * *

Maggie and The Mistress and Karen were the last ones left. Karen went to the locker room to change. She thought she’d forgotten something, and went back to the O.R. She paused at the door, and peered through the window. What she saw stopped her in her tracks.

There was Maggie on the table, an anesthesia mask strapped onto her face with the hoses dangling free, and her gown and scrub dress up over her hips. Her legs were up in the stirrups, and The Mistress, still masked & gloved, sat on a stool, her face buried in Maggie’s crotch. Maggie had both hands on the back of the Mistress’s head, and was writhing around in obvious pleasure.

Karen furtively watched the scene for a bit, getting hornier and HORNIER and HORNIER. She reached up to touch her mask, then pinched her nipples, and came. Hard. Slowly she calmed down, and then, feeling foolish and embarrassed, and a little like an intruder, she went quickly back to the locker room to change. She left the hospital immediately, now and forever unable to forget the scene she’d just witnessed in the O.R.

That scene haunted her for weeks, and the more she thought about it the more it aroused her. Soon she found herself spending more and more time in and around the O.R., hoping to catch another glimpse of Maggie and The Mistress doing their own special “procedure.” She never did, and later Maggie, and then the Mistress, moved away to other jobs at different hospitals.

Karen, however, was touched forever. She knew that the O.R. was the place for her, but she felt a little odd about one of the main reasons. She would frequently lie in bed at night after a session in the O.R., with visions of masks and gloves and “operating” on her “patient” going through her mind as she masturbated to a tremendous, gut-wrenching, thrashing orgasm.

She came out of the O.R. one afternoon toward the end of her final semester feeling hornier than she ever had. She looked at her hands, still clad in the rubber surgical gloves, the long cuffs pulled tightly up over the sleeves of her gown. All at once she remembered her first time in the O.R., and how the clarity of the thought of masturbating with the gloves on had hit her. Karen felt as though she were in a dream as she reached up to untie her mask. I’ve never tried it dressed out like this before, she thought, and in her heart she knew that prepping for surgery would never be the same again. She quickly changed and gathered up a few items from the supply room, then headed home.

Her heart was in her throat as she stepped in the front door and locked and bolted it. After a quick check to confirm her roommate’s absence for the rest of the day, she headed for her bedroom.

With the addition of some items from the bathroom, she carefully laid out all the items from the hospital; everything was ready. She felt a bit giddy as she began to strip down to her bra and pantyhose; the anticipation was palpable. Opening her closet, she chose her green scrub dress – easier access, she told herself. She slipped the dress on and tied it snuggly about her waist and neck , then reached for the O.R. clogs her older sister, also a nurse, had given her for her birthday. She slipped her feet into them and turned to the full-length mirror. She always had been pleased with her body, she thought as she studied herself. As if in a trance she raised her hands to her full breasts and cupped them, squeezing them gently. The wetness in her crotch was definitely building. You’re a hot one, aren’t you girl, she silently told her reflection in the glass. She watched herself reach for the shoe covers and slip them on, and then pick up the cap. For the second time that day she went through the process of carefully tucking every wisp of hair under the cap. At last, her heart thudding in her chest, she picked up the mask.

Karen vividly remembered Maggie tying her mask in place for her that first time as she turned the mask over in her slender hands, feeling the material and enjoying the anticipation of what was to come. “We mustn’t spread our germs about, you know.”

Bitch, Karen said to herself now. We also mustn’t have an orgasm unless we’re masked, either, mustn’t we, she thought. Her hands trembled as she raised the mask to her face. Slowly and deliberately she stretched the bottom edge under her chin and tied the strings tight on top of her head. She felt butterflies in her stomach as she raised it up over her nose and tied the other pair of strings behind her head. A strong shiver shook her body as she pressed the metal strip down over her nose.

Masked now, she studied her reflection in the mirror. Again she cupped her breasts, and drew her breath in sharply at the sudden rush of pleasure. She both saw and felt her mask flatten against her face, and she knew she’d passed the point of no return: prepping for surgery would definitely never be the same again.

The gown was next. As she put it on and wrapped it around her shoulders and back, she wished she had someone to tie it for her, but… But what? she wondered. She let the thought go and tied the gown.

Now the gloves, she thought as she ripped open the sterile package. She held the open package to her face, deeply inhaling the aroma of latex through her mask. Her nipples were rock-hard, and tightened further at the smell of the gloves. She took the first one, thrust her hand into it and stretched the long cuff up over the sleeve of her gown. Then the other one, and she was done.

This is it now, girl, she thought as she watched herself in the mirror, holding her gloved hands up in front of her just like in the O.R. She positioned a chair and footstool to face the mirror, and raised her gown and scrub dress as she slowly sat down. Her hands went to the inside of her thighs as she spread her legs. The crotch of her pantyhose was thoroughly soaked, and the wetness had begun to spread down her legs. Delicious, Karen thought as she caressed her legs. She rubbed her swollen lips through the nylon, loving the feeling of the fabric moving against them. Her knees trembled at the touch; her whole body ached for the powerful, flooding release of orgasm.

She reached for the sterile prep tray and opened it, placing it on the table beside her. She placed her feet on the footstool and selected a scalpel from the tray. With this she deftly cut away the entire crotch of her pantyhose, completely exposing her pubic area and the uppermost part of her legs. She ran her fingers through the soft curls until she reached the smooth hood of her clitoris. Her heart pounded in her chest as she gently rubbed her gloved fingers over her clit. She lowered her other hand to the opening of her aching vagina. She spread her legs wide to allow herself an unobstructed view in the mirror as she slowly and deliberately penetrated herself. She had never been this horny before, she realized, and the thought distracted her for a moment. She got her breath and calmed down a little, then removed her hands from her pussy.

Turning to the prep tray again, she took the razor and a can of shaving lotion. She made quick work of removing every last bit of hair from her pubic area until she was as smooth and clean as a little girl. She finished cleaning herself up and looked in the mirror again. We’re ready to begin now, she said to the masked woman in the mirror.

She raised her hands to her breasts and cupped them again, squeezing them harder this time. Oh, how long she had wanted to do this. She brought one hand to her breasts, kneading them and pinching her nipples roughly. She leaned back into the chair and spread her legs wide again, completely exposing her newly-bare pussy.

Both hands moved as if of their own volition to the glistening opening of her vagina. With three fingers she began vigorously rubbing her clitoris, while the other hand moved over her cunt, spreading the slippery wetness everywhere. With each stroke she thrust her hips against her hand; her clitoris tingled and burned with pleasure. She felt her orgasm building deep within her, rising and swelling as she rapidly reached the point of no return. She switched to hard, fast up and down motions on her clit, and roughly plunged her fingers deep into her vagina.

She looked into her masked face in the mirror, and gasped. As the mask flattened against her face again, the orgasm flooded over her.

A shudder wracked her whole body as her cunt clutched desperately at the invading fingers. She groaned deeply, feeling the tremendous tightening of her whole body as the force of the orgasm overpowered her. Her legs collapsed, leaving her slumped down in the chair, convulsing with pleasure as the contractions that had started deep in her being spread rapidly to her vagina. Her cunt continued to contract in violent jerks which slowly gave way to constant trembling as the orgasm waned. Why, it’s fibrillating, Karen thought to herself, and smiled through the silken veil of pleasure. She remained in her chair, totally relaxed, and took a few slow, deep breaths.

After a few minutes she stood up, albeit slowly and unsteadily. She smoothed down her dress and gown, and took a good look at herself. Good news, she thought: the operation was a success. Slowly she peeled off her gloves, inhaling the aroma of her juices mingled with the latex. Someday, she knew, she would have to fuck like this. And maybe it’d be her very first time. A surgical procedure to lose my cherry, she thought as she reached up to untie her mask. But already she was looking forward to her next “solo” procedure.

February 2, 2009 Posted by | Fetish | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | 2 Comments

The Evil Nurse

Karla was passing the Nurses’ Lounge when she heard sobbing from within. She opened the door slowly and peaked inside. One of the candy stripers, a girl named Doris, was sprawled on one of the couches, bawling her eyes out… “What on earth is the matter, dear?” Karla said as she walked over to the girl, sitting beside her.

Doris looked up, face streaked with tears and cheap eyeliner, her mouth locked in a downward curving crescent shape. “Its…its…that girl in room 14B,” she blubbered, lip quivering, “She’s so terrible to us…she calls us names and threatens to get us fired…” Karla had only just returned from a vacation in the Bahamas, and she had this to deal with on her first day back. As of yet, she was unfamiliar with the occupant of room 14B. “Well, don’t you worry anymore,” Karla said, putting her arm around Doris’ shoulders, “I’ll drop in on…what’s her name?” “Jenna…Jenna Berkley…” Doris replied, her sobs moderately reduced, “T-thanks, Karla…”

Karla patted Doris’ cheek and strode out of the lounge purposefully in the direction of 14B. She stopped off at the Nurses’ station and examined Jenna Berkley’s chart. She was 17, apparently had a yeast infection and had been admitted at her parents’ request so that she could get “optimum care”. Well, thought, Karla, I’ll see to it that she gets taken care of… Chart in hand, Karla continued on her way to 14B from where, as she approached, she could hear music blaring. She stood in the doorway for a moment. Jenna stood at the window, her back to the door, bobbing her head jerkily to the punk music blasting out of a large radio she had placed at the foot of the bed.

“Excuse me,” Karla said in a no-nonsense monotone. Jenna was oblivious, or perhaps was ignoring her intentionally. “I said, excuse me!” Karla said louder this time, stepping into the room. Jenna turned around, a f@ck-you smirk on her face. “Yeah? Is it dinner time or something?” “That music is just a little too loud,” Karla moved towards the bed to turn down the volume, but Jenna beat her to it, adjusting the volume minutely. “Better?” she said with a sneer. “This is a hospital…” Karla started. “…Yeah, and I’m one of the patients!” Jenna snapped back, “My daddy is paying good money for me to be here, so back the f@ck up, bitch!”

Karla was momentarily startled by the girl’s foul mouth. She had expected a troublemaker, true, but this one took the cake. Karla quickly snatched the radio’s plug out of the wall socket, cutting off the music in mid-shriek. “That will be quite enough,” she said, voice tinged with menace, “Rich daddy or not, you are going to behave on my floor…savvy?” Karla advanced on the girl as if to grab her only to get a foot in her midsection. Jenna followed up with a stiff-finger jab to Karla’s diaphragm, sending the nurse sprawling backwards… “Don’t you ever try to touch me, c*nt!” Jenna snarled, crouching in anticipation of striking again.

Karla half-stumbled out the door just as Dr.Juha, the handsome young Finnish intern was approaching. “Is everything alright?” he said, placing a hand on Karla’s hip to help steady her. Karla was still catching her breath. She pointed into the room where she now saw, to her disgust, Jenna sitting innocently on the edge of the bed, radio stashed beneath it. “She…I…” Karla stammered. “Is everything alright, Jenna?” the young doctor queried, stepping into the room and leaving Karla swaying outside. “Everything’s fine, doctor,” Jenna said in a little girl voice, “I think the nice nurse slipped on something…she ran smack right into the door…” “Oh she’ll be fine,” Dr.Juha said, smiling, “And you’ll be fine, too. You get to go home tomorrow after a good night’s rest.”

Karla was thoroughly disgusted, and limped away. Doris hadn’t told her half of it. This Jenna Berkley would need a real attitude adjustment. All in good time, Karla thought, mind racing with schemes…

Karla’s shift ended at midnight. By now the requisite sedative that all the patients received would have kicked in, and she made sure that Jenna Berkley had gotten an extra dose in her dinner. She would be zoned by now. While the next shift’s nurses were still sorting themselves out in the lounge, Karla crept into Jenna’s room. She was sleeping soundly enough, mouth agape. Karla peaked back out into the hall. No one was watching. In a swift maneuver, she lifted the girl out of the bed and hustled down the hallway to exit stairs with her burden, puffing and panting with the effort. Safely inside the stairwell, Karla grabbed the girl under the arms and dragged her up the steps to the floor above…the surgical wing! No one would be there at this time of night unless an emergency case came in. Karla decided to take the chance… Karla stopped to catch her breath then continued dragging Jenna into the surgical prep room where patients were sedated and cleaned up before being taken into the OR. In a final effort, Karla heaved Jenna up onto a gurney that was always kept there.

Karla produced a hypodermic from her pocket. It contained a dose of stimulant that would rouse the slumbering Jenna just in time for her special treatment. She jabbed the needle into the girl’s hip, eliciting a grunt from her in response. Karla smiled to herself in anticipation of the fun to come. Jenna moaned softly as she began to stir. Karla in the meantime had strapped the girl’s wrists and ankles to the gurney. “W-wha?” Jenna babbled as she came around, “Where…” She blinked up at the painfully bright operatory light above her, still unsure of her surroundings or even her consciousness. “You’ve had a serious development with your infection,” Karla said, leaning down over the girl, “I’m afraid we’ll have to operate…” At that, Jenna’s awareness increased dramatically. “What are you talking about?” She said, the stimulant having brought her out of her dazed state, “I-I feel fine…” Then she saw Karla and she knew all was not kosher. Karla snapped on a pair of latex gloves then proceeded to tie her surgical mask in place.

“Hold on…” Jenna said, her voice rising to a shriek, “HOLD ON A MINUTE!” “Now there’s no need to get upset,” Karla said, turning away for a moment to pull an anesthesia trolley up to the head of the gurney, “You won’t feel a thing…well, eventually…” Jenna jerked at her restraints. She lifted her head up to scream, only to have it forced back down by a large black rubber anesthesia mask that Karla shoved onto her face. Her cries were muffled sufficiently, and Karla let her continue screaming since she hadn’t started any oxygen or gas flow yet. Jenna would smother if she kept it up. Sweat was beading on the girl’s forehead, her eyes bulging as she struggled to get air into her lungs. “Now are you going to behave?” asked Karla sarcastically.

Jenna jerked her head back and forth, but Karla’s control of the mask was total, keeping it in place despite Jenna’s struggles. When she was certain that Jenna would breathe anything she pumped to her, Karla started a low flow of oxygen and nitrous oxide. Jenna gulped the mixture without resistance, only realizing as the room began to spin that she was being gassed. It wasn’t long before her struggles subsided. “That’s a good girl,” Karla said, easing her grip on the mask slightly. Once she was sure Jenna wouldn’t offer too much resistance, she attached the mask harness and went back out into the hallway to make sure the coast was still clear. All was still. It was time for the treatment to begin in earnest.

Back in the prep room, Jenna moaned softly, her only protest now. Her eyes followed Karla’s movements, frequently fluttering as she tried to maintain focus. She mumbled something, but it was unintelligible through the thick rubber of the mask. “Its Ok…just relax…” Karla reduced the nitrous flow, flushing the mask now with oxygen. Again Jenna shook her head from side to side in an attempt to dislodge the mask. Karla grabbed both sides of the girl’s head, holding it steady, then stared down at her. “It’s a shame you won’t remember this come morning,” said Karla coldly, “And no doubt you’ll go back to being the same spoiled bitch that you were, but I want you to know that at this moment your life is in my hands! She released her grip on Jenna’s head and produced a hypodermic. “See this?” Karla said, tapping the hypo with her finger, “Its called curare. It will paralyze you to the point that you won’t be able to breathe without MY help…understand?”

Jenna’s eyes widened in terror, then shut tightly as she screamed with all her might. The mask muffled it sufficiently. At that, Karla jabbed the needle into Jenna’s shoulder without further ado. Again the girl screamed, but it changed quickly into more of a pathetic gurgle as her muscles began to succumb to the drug’s effects. Soon she was gasping for air. In truth, Karla had given her a small dose of the drug, just enough to induce panic…and she had achieved that quite nicely. Jenna could only stare up at her, her breathing shallow and strained. Wasting no time, Karla took the turgid rebreathing bag in hand and squeezed a lungful of oxygen into Jenna. Her trained hand continued rhythmically pumping the bladder, slow and surely. Jenna’s relief was only evident in her eyes, wide and staring but no longer rolling in abject panic.

Karla continued this for several minutes, sometimes squeezing slower, sometimes faster, just enough that Jenna was never sure when her next lungful of precious air would come. Karla knew that someone would be checking the beds soon and she had to get Jenna back. “Well, sweetie, its nite-nite time for real now. Wouldn’t want any more upset nurses on your account, now would we?” Karla whispered harshly.

She turned on the flurothane now, about 5% of the mixture, then switched over to the automatic ventilator. Jenna’s brow wrinkled slightly as the machine took over her breathing, alarmed at the mechanical precision. But within moments her eyelids began to droop, then finally close as the potent anesthetic agent took effect. So as to insure Jenna’s amnesia, Karla injected her with a light dose of sodium pentothal. She removed the mask and took a moment to look at the sleeping girl. In her present state she was almost angelic, proving that you really couldn’t judge a book by its cover. Certain that the girl wouldn’t feel anything, Karla slapped her face for good measure. “Sweet dreams, you little cunt.”

Karla was able to return Jenna to her bed without incident, and quickly left the hospital. By the time she came back on shift the next day, Jenna had gone home. Doris was doing her rounds, bright eyed and smiling. “Well, this is certainly an improvement from yesterday,” Karla said to her.

“That awful girl went home today, you know,” Doris replied, “And it seemed like she was, well, different. No more cursing or spitting or anything like that. She seemed almost scared. One of the nurses said the girl had had a really nightmare or something last night.” “Most likely it was a bad reaction to the sedative,” Dr.Juha piped in, walking out of the nurses’ station. He looked at Karla for a moment, smiled, then continued down the hall. He stopped suddenly and turned around. Karla felt her blood run cold… “Care to join me for lunch, Doris?” The candy striper squealed in delight while Karla breathed a quiet sigh of relief. As the Dr.Juha and Doris walked away, Karla smiled wickedly then went about her duties…

February 2, 2009 Posted by | Fetish | , , , , , , , | 3 Comments

The red bag… a good ol’ friend.


Over the years I have amassed a rather large collection of enema bags and nozzles. I’ve got my favorites, and a few that I really don’t care for. Today when going through that collection to clean some bags, shine some of the latex bags, and to check some of my inflatable nozzles I discovered one of my first bags ever in the bottom of my enema drawer. There is was…the red bag I had purchased at Walgreen’s almost 10 years ago. I remember it fondly for many reasons. For one, I was 18 and had just moved out on my own to go to college. It was my first purchase that I never had to worry about my parents finding, questioning, etc… And the second reason being that the internet was still somewhat new at the time. I had been thinking, reading, and chatting so much about medical fetishes and it was something that still felt so foreign to me. Buying that bag and my first bag of diapers was something I just HAD to do that day.

Well, this morning when I found the red bag at the bottom of the pile, it just called to me. For some reason I had to use that bag this morning. There is lay…just as I had last used it with the douche nozzle connected to the cheap vinyl tubing. I prepared a nice solution of coffee for this morning’s enema. Not too strong, certainly I’d have made it stronger if taking it orally. I was just looking for a nice relaxing cleansing enema. As I filled the bag it made that sweet sound of the water filling it that I remember from years ago. I sealed the top and purged any air from the tube before shutting off the plastic clamp. I took the bag to my playroom and hung it on an IV pole. I began to sit down in my gyn chair and could picture myself sitting there with the knees in the stirrups, and it donned on me…this bag was meant to be used in a simple manner, as I had done years ago. I wheeled the IV pole across my small hallway to my bedroom and set it right next to the bed. As I laid down I took a small amount of lubricant on a gloved finger and made sure I would have no problems inserting the sometimes awkward douche nozzle. With the nozzle in place I release the clamp and feel the still hot solution in place. For some reason I am captivated by the side of the bag…staring at it as it gets thinner and thinner, until finally…Its collapsed onto itself. I lay here for a few moments imagining my girlfriend at the time, helping me out of bed, following me to the bathroom, with the red bag in tow. She’d have me sit all the while she was holding the bag in her hand with the little white plastic hook.

While we all have tried increasing volumes, bigger bags, longer tubes, etc…let’s not forget that old friend, the red bag…after all, its what got us started.

February 2, 2009 Posted by | Fetish | , , , , , , | 2 Comments

A home treatment…

This was put together by me and a friend of mine several years ago. Very crude and primitive….unless the imagination tells us otherwise.

  1. Patient is to remove all clothing and don the exam gown.
  2. Patient is laid on bed
  3. Basic restraints only are to be used at this point. This includes waist and wrists only.
  4. Patient can be using oxygen/anesthesia masks as required or desired by nurse.
  5. Patient can be covered while nurse(s) prepare themselves.
  6. The patient can be blindfolded depending on the nurse’s requirements.
  7. Nurse is to prepare with gown, cap, and gloves. Mask can be left untied at this point. Scrubs are recommended under the surgical gown.
  8. Nurse should prepare enema equipment.
  9. The first enema prepared should be a small bulb-type enema with a very potent solution. Mineral can be used as can s high concentration of soap and water.
  10. The second enema to be prepared is a simple bag with a moderate solution of soap and water.
  11. The third enema to be prepared is a large bag of straight water.
  12. All enemas should be extremely warm, just under the level of burning the skin.
  13. Bags can be left in bathroom while preliminary exam is completed
  14. Patient needs basic vitals taken…listen to heart, check blood pressure, take pulse, etc…
  15. Basic rectal exam should be done at this point.
  16. After rectal exam patient is to be released from bed.
  17. Patient should be handcuffed
  18. The blindfold should be removed from the patient.
  19. Patient is taken into bathroom where first enema is to be given
  20. Nurse must be masked at this point. Can don second pair of gloves if so desired.
  21. The bulb syringe is inserted in the patient while standing.
  22. Solution should be administered as rapidly as possible.
  23. Bulb should be removed from patient’s rectum to allow him to retain the solution comfortably.
  24. After approximately 5-10 minutes, the patient should be seated on the toilet to allow him to evacuate the enema solution.
  25. Once the patient is complete the nurse will lead him back to the bed. He is to be restrained face-down. Both ankle and wrist restraints must be used.
  26. The second enema bag is hung beside the bed.
  27. The inflatable nozzle is placed in patient’s rectum. Bulb is inflated and tugged on several times to ensure it is in place.
  28. The inflated bulb must be left inside the patient while he is restrained.
  29. Once patient has held the solution for an adequate amount of time the nurse can release his wrists and ankles, and lead him to the bathroom after securing his hands.
  30. Once the patient is comfortably seated the Nurse will deflate the bulb and remove it from patient’s rectum. Patient will be allowed several minutes to release.
  31. Patient is to be escorted back to the bed where he is restrained on his belly. Handcuffs can be left in place if Nurse desires to do so but must be combined with ankle and waist restraints.
  32. Nurse inserts enema nozzle again. The bulb is inflated and again tugged on several times to ensure it is properly in place.
  33. The enema bag is filled with the solution of hot water.
  34. The enema is administered with the flow going in very slowly.
  35. If Nurse desires, patient can be prevented from watching the bag empty by use of a blindfold.
  36. Once again, patient should be wearing oxygen/anesthesia masks as Nurse desires. A variation of this would be for Nurse to place gag on patient.
  37. Once enema is finished, patient is to be left on bed for several minutes to hold the enema.
  38. Once this has been completed, the patient is assisted from the bed and led to the bathroom.
  39. Patient is seated on toilet.
  40. At this point the Nurse is to deflate the nozzle and allow the patient to release all of the enema solution. Gag and blindfold, if used, should be left in place throughout.
  41. Once patient has satisfactorily release he should be led back to the bed.
  42. Before being restrained again the patient should be laid across the nurse’s lap and spanked to ensure understanding of what has just taken place. This spanking period can be as long or as brief as the nurses desires.
  43. He is to be laid down on his back and fully restrained. This would include ankles, thighs, waist, chest, head, arms, and wrists.
  44. At this point a sperm sample should be taken. This can be done by the gloved hand of the nurse or with electro ejaculation if using TENS equipment.
  45. Once a patient has had a satisfactory sperm sample taken he should be left to rest. A patient that has just completed this type of treatment tends to get very unruly, asking for restraints to be removed, etc… This should be done under NO circumstances.
  46. The patient will have a Foley cath put into place connected to the appropriate collection bag. The Foley can be left clamped shut should the nurse desire. A rectal Foley must be administered if the nurse has one available.
  47. Nurse should diaper the patient and use the appropriate plastic pants over top to assure dryness if the patient should wet. Disposable diapers are to be used at all times on patient when not undergoing treatment.
  48. If a TENS unit is available it will be hooked to the patient in strategic areas before leaving him to rest.
  49. If she so desires the Nurse can leave the blindfold and gag in place however the patients are sometimes comforted by watching the nurse remove her protective gear.
  50. The patient must have the vitals taken again at this time. They will be recorded by the nurses and must be taken every hour while the patient is restrained.
  51. It is recommended the patient be wearing the anesthesia mask for this rest period. An resuscitation bag and mask can be used if the nurses desires to be in control of the patient’s breathing.
  52. The patient is to be left diapered by the nurse for the duration of her overseeing his care. The Foley can be removed after several hours of bed immobilization.

February 2, 2009 Posted by | Fetish | , , , , , , , , , , , , , , , , , , , , , , | 1 Comment