2 high school fights and nothing since. One of them was a nothing fight, I don't think either of us did any damage to the other, I remember punching him in the chest. The other time some smurfing prick sucker punched me in the back of the head while we were playing basketball cause he said I shoved him. I went absolutely mental and did actually do some damage that time, but it was broken up pretty quickly.

Nothing since then, I rarely put myself into positions where I'll have to fight another person.