At my school, there was a talent show where a student decided to perform a magic trick that involved disappearing. Well, he actually got locked in the prop box by accident and couldn't get out until the end of the show. It was both scary and hilarious at the same time.
Sure. There was a time when a student's pet snake got loose in the school. It slithered through the hallways, causing panic among some students and excitement among others. Eventually, it was found curled up under a teacher's desk.
A wild story was when the school's football team lost all their uniforms right before a big game. Turns out, some mischievous students from another school had hidden them as a prank. The team had to quickly find replacements and still managed to play an amazing game.