I used to be the dumb frat boy who would go to bars and get into fights over stupid stuff. Another fraternity brother and I would talk before we went out for the night and say "you talkin or throwin" Meaning one of us would get pissed off at someone for something stupid, then the other would come in and start fighting. After a few bar fights, I really calmed down. Not much really pisses me off enough anymore to want to fight. If someone tries to start something anymore, I usually just talk my way out of it, then walk away laughing to myself at how dumb the whole situation is.
I honestly feel that fighting is completely immature except for a few exceptions (defending someone else from physical attack, etc). Over the summer I witnessed my ex gf's father, who was upper management of a very large national drug company get in a fist fight with a young guy at a bar over something really stupid and realized how dumb he looked. Haven't thought about fighting since.
So no, my temper does not get out of control anymore