I have personally gotten into one fight, and I nearly killed the kid. I personally find no benefit to fighting since it is just a way to get hurt and there is no real benefit to it. I was known as a "weak litle bitch" since I never attempted to prove myself beforehand. Someone started talking shit to me one day for personal things that I can't control. I warned him, and gave him about 3 warnings. I have given him my famous "look" that people usually take as an "oh fuck okay sorry man" look. He kept going.
I got him to square up since I am not a pussy and take cheap shots like that. What I did was hit him with the bone right above my wrist, since it is the hardest bone in your "hand area" and it would inflict the least amount of damage on yourself after hitting the target. I waited for him to swing, then hit him in the stomach. Once he bent over (due to it being a natural reflex) I proceeded to push that bone in my hand up against that kids nose with an amazing amount of force which broke the kid's nose and nearly dug the bone in his nose in his brain. Once he fell down I kicked him in the head a few times until I got pulled away by my friends. People think of me as a weak little asshole, but once you piss me off I don't stop attacking.
Nobody has ever attempted to fuck with me again, I still take jokes and shit and there have been times where I have gotten made fun of. I take it because I find it funny. But people realized that day that when I say to stop. I mean it. My belief is that the person that you are fighting wants to kill you, so why not kill him first.