When Byron Graves and I had our fight in 7th grade, we each got paddled (2 each) by the dean of boys and spent 2 days in detention (our parents were call also and had to come to school, and I got paddled again when I got home ).
I got in 1 fight in junior high.
I had been taking martial arts for a couple years before it.
I didn't start the fight. All I did was block the entire time. A teacher broke it up within half a dozen punches or so by the other boy.
Principal wanted to call the police on both of us.
I looked him in the eye and told him: "If you do that, all you'll do is teach me that regardless of my chosen behavior in a fight I didn't start, I'm going to get the same punishment. So, the next fight I get into, you'll need an ambulance for the other boy. And I'll expect to see the same punishment for me as the other boy."
He sat and thought about it for a bit then put the two of us in in-school detention for the rest of the day, and that was the end of it.
I already had quite a dislike for authority due to some other stuff that happened when I was younger, and despite the principal's ultimate decision to revoke any serious punishment, I was still STRONGLY irked that I even got in-school detention for merely defending myself, and that the other kid got the same punishment for starting it. The ultimate result was that my "rightness" ended up saving the other boy some punishment. Behavioral communism, though I didn't understand it at the time.
It DID reinforce to me that if I have to fight, I should put my opponent down hard and permanently. "Authority" will never be my friend when responding to something outside of its control.
And I didn't get in any more fights afterwards, either.