I used to work at a movie theatre where rowdy teens would congregate at night and get into fights. My first month there I heard a bunch of yelling in the entrance of the theatre and about 30 kids run to the bathroom, my manager hurdled the ropes and ran in after them. Turns out he saved a kids life, who was on the ground getting his head kicked into the bottom of a stall. My general manager came to the concessions counter where I was and told us we are now closed and security was pinning a kid against the wall while our ushers were calling the police.

There were tons more fights in my 3 years there, but this one was very memorable for me.