I remember this peculiar kid in our class. Never says a word and when he'd speak you could barely hear him, during breaks we'd just hang around without a purpose, this nigga would wander off on his own to God knows where. After a while, we got used to it. One day, the teacher criticizes his homework and he goes completely mental walahi, jumping up and down, huffing and puffing, insulting the teacher in every way possible (the teacher was quite ugly, so he had enough material for a minutes-long tantrum) and threatening to kill everybody and than just sat there huffing and puffing. The whole class was in shock, like we were in a movie, but more so b/c it came from him particularly.
I also witnessed a classmate squeeze his zit and eat the pus, walee went straight to his mouth, disgusting creature.
I have more bizarre stories, some on co-workers.