we had a lovely one at uni...our hall on South St a Georgian building and a 'Godsquadder' from the 4th floor (the top floor) managed to catch a Bay City Roller, with all the tartan scarves flaying away, square on with a carton that had been out on his window ledge for over 10 days, in other words liquid scone juice.
The Warden stood up at a formal dinner and said that he could not condone this behaviour and he hoped that the responsible would step forward or (the Warden's undoing) "I'll have to fine each of you a penny to cover the cleaning bill."
Applause and huge laughter.