I was a non functioning alcoholic and ran with some rough types in my late teens/early 20s and have both kicked ass and had my ass kicked. Mostly drunken barfights.
One time someone legitimately mistook me for someone else and started cussing at me, so I started cussing back and pushed him to the ground. He got up and did a really neat move actually where he faked a kick and then socked me right in the cheek, knocked me on my ass. I apologized, got up, we figured out the misunderstanding and he bought me a beer.
When I was 22 y.o. I punched someone from the rival team in a football match until he fell to the floor because he pushed a teammate into a rocky slope after the ball was out of play. I got expelled from the league (and the match obviously). I got kicked and punched but not in the face by the rest of his teammates.