When I used to live in Southampton, I used to drink at this pub (Court Jester) in the city and every Thursday night there used to be this guy that would walk back and forth so everyone in the pub could see him. He'd have some song buzzing round his head and he'd just dance back and forth playing up to everyone in the pub, but he never came in.
Never found out his name or even met him but it got to the point where all the pub regulars used to look out for him, was free entertainment.
Cheers
Matt