Oh wow I have a lot of these to post.

Last year a kid lit a trash can on fire in the bathroom and almost burned the school down.
One time a kid pleasured himself in the back of the Biology class.
Two other kids got busy under the bleachers at PE a few years back.
One of my friends got busy in the guys bathroom, her dad walked in on them...Her dad is the Principle.
A guy got expelled for selling marijuana to a 7th grader.
Someone took a toilet out of one of the bathrooms and put it on the roof of the school.
Some dudes broke into the lunchroom on a weekend and stole all the food and a few hundred dollars. They were middle schoolers.
And there's probably more but I cant think of them at the moment. What's sad is there's only 300 people in my High School. 400 in the middle school that's attached to it.