A pumped-up crowd can act like an extra player on the field. But there's a line they're not supposed to cross--literally--and these fans just couldn't help themselves.

From verbal sparring with the opposition, to fighting with the press, to physically attacking the guy with the camera, when meltdowns happen they can be a sight to behold.

Going beyond the everyday broken bones and torn ACLs, to the truly bizarre injury mishaps that serve as a reminder to us all - sometimes, even when you win, you lose.