I was never a fighter - I was never enough of a threat to anyone. However, when I was 15/16 I got paired with a new guy at school. He had shifted school, probably because he was getting into trouble. I had to sit with him for biology and geography, help him settle in. We got on well enough, but he did try to dominate me physically - I tended to shrug such things off. One day, I was waiting outside class. The door opened, and I stepped in. Behind me, the new guy had stepped forward and aimed a kick at my behind. But my stepping forward made him miss, and he fell over in front of the teacher. His embarrassment made me a serious target, and after class he came looking for me. There was a bit of circling, a few punches thrown but no real connections, lots of kids around, but noone got hurt and it all blew over pretty quick.
However, at the end of last year, I was running a chocolate fountain at a wedding reception with my stepson (who was helping out while visiting from NZ). The people were really good (the groom was a squaddie, lots of his mates and plenty of ex-military types), but there was a bloke who talked loudly and aggressively and was pretty drunk. Towards the end of the evening he got up to leave, and looked for his wifes coat, which apparently had been on the table we were using for the fountain. So he assumed that I had done something with it. I hadn’t, and at that point (faced with a threatening, drunk, shouting bloke) I forgot that there was a coat rack by the main entrance. He threatened to tip the fountain, and then grabbed me by the throat. I was semi-evaluating the chances of punting his nads while trying to remain calm and talking him down when my stepson stepped up, the best man stepped up, and it was all defused - the coat was found on the coat rack and the wife was really apologetic. According to other guests, the bloke could be a bit of a nutter - hit first and ask questions later. I resisted the temptation to pack up there and then (chocolate fountains plus high spirited drunk lads = bad mix), but decided that I could not ruin the bride and grooms evening. So that is the closest I have been to a fight in 25 years since school.