In 8th grade there was this kid in my class who left the class to go to the washroom. Back then you had to get your agenda signed by the teacher with a time as sort of a hall pass before you left. Anyways the kid goes the washroom and shits in his agenda and brings it back to class. He then dumps the shit into someone's shoe box diorama in the back of the class. Of course everyone who knew about it thought it was hilarious and was laughing, but the teacher had no idea what was going on at the time. A week later we were told to collect our dioramas and take them home. So one girl picks hers up, looks inside and screams when finds a week old shit log inside of hers.

This same kid also wiped his cornhole on a teachers coffee mug when he left the class once and ate a live gold fish from the tank in the science lab.