I get that feeling all the time. Especially when I'm Drunk. About 2 weeks ago me and a bunch of friends were wasted. we decided for some unknown reason to find someone to fight, and went down 2 floors in my dorm and beat the shit out of some random huge kid. it was so funny, he said he didn't want to fight, and then he threw the first punch. by the end of the fight he was on the ground and we were kickin his face, hahahahaha. I feel bad about it now.