a lot of those looked like experienced people who just went for too much, or had a mishap, but i got really confused by all the spastic jerking going on there. like at 3:40...

oh no
that one guy in the black t-shirt who made up like 25% of that video, at one point it was funny because he's ridiculous, but by the 4th separate clip you realize you're just making fun of a legitimately mentally handicapped person -.-