Step aside, antifreeze ...
Not to get us off topic or anything ... but did you guys know that Botulinum Toxin (Botox) is the most toxic substance known to man?
In fact, if you could find a way to distribute it evenly (theoretically, of course), four kilos would be sufficient to kill the entire human population of the world. I looked it up and, according to that wiki place, between 90 to 270 nanograms is all that would be necessary to toast a 200 pound human person. And if you only weigh about 100 pounds, it would only require about 45 to 100 or so nanograms to toast you. (A nanogram isn't a whole lot of something, either.)
And to think that Mr. vailpass is hanging out with guys who shoot this stuff into their buttocks. High strangeness.