In middle school there were 2 kids that really liked Naruto, and talked about it every day. So one day they came to school with a few homemade knives that they used in the show (kunais or whatever they're called), and then they got into an argument (about who was the strongest character), shit got heated and they started throwing the knives at each other. That was one of the craziest things I've ever seen, and both got expelled lmao.
In highschool, my biology teacher just talked about aliens and conspiracy theories. She would also talk a lot about her personal life, but it always was related with aliens somehow. She was then fired for allegedly trying to fight another teacher.
There was a dude that used to snort cocaine at the school bathroom till he got expelled, later I heard that he joined the army. He also claimed to perform satanic rituals in his house.
Now in college there's a girl who walks around the campus with a ouija board asking people to play with her.
Another dude that looks like Neo Cortex from Crash Bandicoot, and is always staring at people like he wants to kill them or something, he is always talking about rollercoasters with other people, and is really into anime.