Funny Farting Videos catches the guilty party in the act of launching one. This is a group sport where everyone gets to participate, some in the aahing, the others in the oohing.
Two facts we cannot deny: The average person laughs and passes gas 14 times daily. I know one leads to the other.
Secondly, it is designed to be a group event. Two men in an elevator, one passes gas and they both know who did it.