Because someone apparently looked at opiates one day and thought, "Yes, these are nice, but what if they were way stronger and ATE THROUGH YOUR GODDAMN FLESH?!" meet Krokodil! It's a derivative of morphine and is slowly gaining popularity across the globe, especially in Russia. And as I mentioned before, it has one teensy, wee little caveat . . .
IT WILL ROT YOUR FUCKING FLESH OFF.
You think I'm kidding, right? That it's probably just some gross side-effect that's relatively harmless, right? Well . . . look, I can't specifically show you the side-effects, because this isn't a shock site or anything. So I'm going to super-impose a picture of a smiling puppy over the graphic part of a picture featuring a woman peeling the decaying skin off the leg of another woman. If that's not enough to shake you off drugs, feel free to click here for a full gallery of the kind of horror that you see only out of the corners of your eyes every time you look away from a mirror (WARNING: I'm really not kidding here. It's severely NSFW).
Consider this a lesson, kids: don't do drugs or your flesh will melt off and you will die horribly. Sleep tight!