You're starting to freak out. A tail? A tail?!? What are you going to do?!? You can't hide something like this forever, eventually someone's going to find out. Then what do you tell them, that you just pulled on your underpants one day and there was latex sludge in them that turned into a working... jeez, it's so ridiculous you can barely believe it yourself! What are they going to think, that you're some kind of kinky sex freak? No, the tail moves, and it moves the way you want it to. Maybe an alien? Crap, they might think you're an alien! What if they put you in a glass room and dissect you and stuff, just to figure out what makes you tick?
In your extreme state of panic, you decide that there's only one way out of this: the tail's got to go. You give it a bit of a tug just to make sure that it's stuck on tight, and then decide to move on to some serious measures. Rushing to your kitchen, you open a drawer and pull out the sharpest knife you have. Control over it or not, there's no sensation in the tail, right? Well, you haven't noticed any. You'll just have to hope you aren't missing something, because if you are what you're about to do is really going to hurt. Raising the knife and holding the tail steady, you bring the blade to its base and swipe, cutting through it in one swoop. Painlessly, it comes off, and you see it fall limply onto the floor. You practically jump with joy, barely managing to hold back giggles of excitement as your happiness overflows. Well, it almost overflows, until you feel a growing weight at the base of your tailbone. Looking back, you see another shiny black tail extending from the small lump of latex that remains there, quickly moving to replace the one you just cut off. It's nearly enough to make you cry, especially since it's now apparent that you don't really have any way to get rid of that thing. It'll just grow back every time you try.
Even with that new, irremovable appendage, you've got bigger fish to fry. Or rather, other tails to worry about. Specifically, the one that you cut off, and that's now wriggling about on the floor, moving on its own. You back away, unsure of what to make of this, but that uncertainty is soon a puddle of fear-induced urination when you see a flash of shiny white at the front end of that shiny black, teeth sitting in the mouth of what is apparently a VERY angry snake. You try to back away from it calmly, carefully, every part of you (including your tail) remaining nearly still except the legs that carry you backwards inch by inch, but instead of ignoring you the way you hope the snake takes advantage of your slowness, darting towards you at lightning speed. You feel a sharp pain in your heel as it bites deeply into it, and looking down you can't help but think: is this it? Is that latex snake going to pump some otherworldly poison into you, something that there's no antidote for, something that'll kill you within seconds? Is it all over for you?
Well, you were right about one thing: the snake was going to pump something into you. However, instead of poison, you can clearly see its length slowly leaking its way into the tiny punctures, apparently pouring itself into your bloodstream. You try to grab it, try to stop it from getting in, but it just twists through your fingers, slipping away and forcing itself in further. It's only a moment before the last of it leaks through the tiny holes created by its bite. Looking along your leg, both around the bite and everywhere else, you don't see anything odd. Well, nothing odd aside from the bite itself, whose two small puncture holes are now sealed with some of that black latex substance, this time with a solid, rubbery consistency. Aside from that (and, of course, the tail), you don't look or feel any different. Then again, it didn't just make its way into you for nothing. The worst must be yet to come.