Expelled at age 11
Well here goes, not proud of this but it happened.

I was due to leave the school anyway as my family was moving town and for some reason my best mate of the past year decided that we would fall out, can't even remember why now
Anyway, he decides we need to have a fight before I get to my new school so that I'll "have a bad record" upon arrival.
So the fight is well telegraphed across the playground as we have a fair circle of kids egging us on, coats are removed and sleeves rolled up.
The othet bloke comes running at me performing a swimming crawl stroke, I manage to grab the knot of his school tie and duck below his arms whilst holding him above me at arms length.

He manages to get a few blows to my head but nothing too serious, I manage to push him back sufficiently to stand up to my full height, in he comes again, possibly pushed by the crowd perimeter.

I landed one

He hit the deck blood all over his face and was escorted to the school medical room

Then my peers all congratulate me on an excellent punch etc etc.. usual kiddie yadda yadda

Turns out I had broken his nose with my single hit.

Wavy lines wavy lines (passage of time 22 years later)

I am taking a leak in a pub toilet and some bloke attacks me as I leave the facility, "you don't remember me do you?" say bloke, "errr sorry mate I don't" say I, "It's me 'insert name'" replies the bloke, " we had a fight 20 odd years ago", "ahh yes, I remember" quotes myself, the conversation then basically goes in the form that he is insistant in talking to me and I'm just trying not to get into this, and leave the bathroom (bit o'merican for ya)
The bloke then insists on shaking my hand and thanking me for twatting him and making him "wake up to what a dickhead I was" HUH? WTF? how does that work then?
For 22 years he has been carrying this round with him, we were 11 FFS!!!
I just fought because I had no choice. I was expelled from that school a week later for fighting obvioulsy
(Twisted_firestormer, Mon 13 Mar 2006, 21:10, Reply)