A chap at my school (now training to be a circus ringmaster) went all-out to establish a reputation as the school weirdo. His antics included:

1. Performing impromtu hygiene services where he'd run up behind you, whip out a toothbrush and clean your teeth for as long as it took you to shake him off. All the while, he'd croon "I'm a doctor" in an American accent.

2. Putting his penis (which he'd named "Eugene") in a bap and parading around.

3. Producing a dead crow from his pants in an English lesson.

4. Being employed as a mercenary to kick people up the arse because it was highly likely he'd be in trouble at the end of the day anyway.