There were a few for my high school, but one I was there for was when I was sitting in the bus when suddenly everything went quiet (highly unusual). I looked behind myself and everyone was covering their ears, then the smell of gunpowder hit my nose. Some dumb fuck lit a firecracker and tossed it into the middle lane (wtvr it was called) when the bus was driving between the lake and the train tracks. Thank GOD it was a dud. Anyways, I brought this up to the principle and teachers the next day and seemingly no one gave a shit ?? Goes to show how garbage my school was lol

For my college, I can't give specifics but it'd have to be the murders. Very tragic and sad incident