Years ago I used to be very aggressive.
15 years ago the gym where I trained was merging it's aerobic gym and weightlifting gym into one big new gym. For a while the weights were put into the aerobic gym which made things a bit cramped while they built the big gym.
Anyway, I was doing some dumbell laterals in the temporary combined gym which had a lot of girls training in it. There was a guy who worked there as an attendant who was a bit of an ass and he had a glass eye.
Anyway, while I was doing my set of laterals he walked up in front of me and in a loud voice said "do your laterals in the corner, you're intimidating the girls". He was acting the big shot in front of them. I stopped and told him he better leave me alone or he would regret it.
Again he says "do your laterals in the corner!!"
I put the dumbells down and slapped him like a bitch right across the face. I regretted it immediately. His glass eye flew out and bounced off the window across the room.
Everyone went silent. He walked across, picked up his eye and left the room. I never saw him again. Feel bad about it now but he deserved it at the time.