I've been in one "fight" ever. A coupla years ago when I was working as a camp counselor I was at a house party on a night off from camp. This dude who had a long history of talking unprovoked shit to me, to which I generally did not respond, decided it would be fun to take his balls out and wave em around in my general direction while I was sitting at the kitchen table chillin with some other people, minding my own business not even talking to him. I got up from the table and the guy ran away towards the front hall. I spun him around and said that he's been talking shit at me for too long and he was no longer allowed to say anything to me unless it somehow related to doing our job. He asked what I would do to make him, to which I replied if he ever tried something again it would result in physical harm. He thought I was bluffing, took his glasses off, and told me to go ahead. So I hit him in the jaw, threw him to the floor, and kicked him around a few times. He got up and tried to throw a punch at me, I put him in a headlock, dragged him out the front door, and told him to go back to camp. He left the party, I stayed and chilled out with some nice hashish courtesy of one of my friends.

Aside from that one incident though I'm a very peaceful guy. Everyone has their limit, and that was mine.