There were loads of storied like that at my school. I got suspended for mentioning in class one about an alleged daliance between a certain teacher and a sheep when he was at Uni for an alleged bet. The rumour is that photos exist of it as well. The teacher over-reacted quite a bit, which did make me wonder about the veracity of the story...
One of our prefects was also nicknamed 'Paddy pulls pints' as he was allegedly caught nobbing a milk-bottle. Fairly sure it was bullsh!t - but people still love to spread that sort of thing....!