One of the more memorable professors I had brought a box of meter sticks to class so he could whack them against the lecturn, the table, the rails for the lecture hall and the walls for emphasis. When he broke one, he'd just pull out another and keep whacking.
He was also known for climbing over the chairs of the lecture hall to pick on people if no one volunteered an answer.
He started the lecture by throwing the book we were using into the garbage and then throwing the garbage can against the wall.
He was already a professor emeritus at that point, he just taught to have fun.
...
But yeah a lot of my other lectures were like this.