Well the most stupid reason I got in a fight was because Freeza called me a stupid monkey so I beated the living crap out of him. rofl
Ok for reals though, some guy threw a football and nailed me in the back on purpose (note: this guy was a complete jackass and nobody liked him). So I picked up the football, walked over to him, and threw it in his face. We then started the usual shoving, wrestling, head locks and what not, then I just picked him up and tossed his ass on the ground. I was going to start beating him some more but then my friends held me back.