Bunch of most likely drunken idiots decide to wedge a bottle rocket between their friends ass cheeks and light it off, well I'm guessing he clenched a bit too tight, because the rocket didn't go anywhere. Number one candidate for the darwin award... Lets consult the tape.... Riding A Bottle Rocket To Uranus - Video
Perhaps, but there should be a special category for living idiots. Honestly the guys on jackass got fucked up a bit but nothing crazy. I'd have to say that these guys could possibly be worse, for their total disregard of safety.
You can also win the award by sterilizing yourself (i.e. him blowing up his dick) as he can't have kids anyway so natural selection continues.