http://www.youtube.com/watch?v=w8zUdwnjVRYThere is a drug called 'Crocodile', I think, that actually really does turn people into real zombies. I know this sounds like a joke, but there have been many accounts of people on this stuff actually eating or attempting to eat other people. Not only that, but in only a few month of using this stuff your body begins to atrophy or 'rot', and you can lose digits, limbs, or die. Why anyone would do this stuff is beyond amazing.
But yes, the way America is today with the 'war on drugs', which is more simply and accurately put as another slogan, 'keep funding the ATF', because of this every drug buy no matter if it is simple pot, or something more serious, is a total crap shoot. You have no idea what you are getting. Even if they were smoking a little weed to pass the time, it could be laced with who knows what.
I do not know what is in the 'Crocodile' stuff, but if it is like all the other home-made drugs, it could be drain cleaner, bug spray, gasoline, who knows what? Could be anything.
These people think they are 'getting high', but in reality they are experiencing the early stages of a real poison. Disorientation, feelings of euphoria (lack or oxygen to the brain) followed by nausea, wild mood swings and absurd behavior, they are not 'high' in the normal sense. They are poisoned and too dumb to know it.
Idiot kids would not know the difference. Sometimes, until it is too late.