One time a guy rode through the school on a unicycle at my school...
-
And another fond story, back in Middle school all the science classes in the 7th grade were dissecting frogs and so around the middle of the day the 7th grade hallways bath room was infested with frog guts and different frog body parts. I'm not making any of these stories up, except the acid trip student was probably a rumor, but still.