This is a really smart question. My third grade teacher ground his bunda against a student's folder once. A physics teacher at the school I currently attend referred to hydrogen as a pimp because it could fuse with nearly any element all at once.
My Sophomore English teacher came in with a box full of puppets one dia that she made. She used them to teach the lesson and said she even had a YouTube channel using them. I dunno what channel it is because I didn't look it up. It was weird , but it was fun.
My US history teacher slept with one of the senior students who had to retake the class ¯\_(ツ)_/¯ Everyone was sad when he had to go though, mostly because he was one of the chillest teachers literally throughout the entire school. The thing is, me and some friends at the time ended up running into him a few months later at an Applebees. He was our waiter.
My college teacher made the whole class watch a música video on women with beards and then do a essay on it lol. My freshmen teacher had this bug in a bag in one of the closets in the classroom and he would be looking at it when class was over. He said the reason he keeps it because it was living inside him, I don't know that teacher was extremely weird.. We later found out he does drugs so he got fired.
Okay so there was this one time back in the ninth grade, it was the beginning of homeroom and all my classmates were jabbering and being loud as usual. Now usually when our homeroom teacher walked in, the loud gabbing between students would continue, but this time, the classroom fell dead silent because our homeroom teacher comes in, books in hands, and— I shit you not— his pants around his ankles. And you gotta understand, this guy was as much of a stuffed camisa as they come. So— the room still in confused silence— he waddles over to his desk, sets his books down, pulls up his pants, and buckles them, all in a nonchalant manner. He then turns to write on the white board and, without looking back at us, he calmly states, "Knew that'd get you guys to shut up for once." From that dia forward, everyone would shut up the moment he walked into the room. XD