I had friends in high school that were heavily into "heat." It escalated to the point where one of my buddies walked around with a little cellophane mexi-pak full of dried habaneros to sprinkle on his food. he, of course, kept them in his baja jacket, which meant he'd stick his hands in there, then rub his eyes, then cry out in pain. The next logical step was the "convenience" of pepper spray, at which point I advised him to step back from the brink. We never went through with it. This being the Internet, however, you can always find the probabilistic outcome of any adolescent male stupidity:
My grandfather is from Mexico and the guy eats Habanero's without so much as wincing. He finds people that complain about the mild jalapeño particularly offensive. He's 80 and is still very active; running, jumping etc. -Maybe it's the Habanero's?