OK, OK, so that's a little misleading, but potty is a British slang word for "crazy" , which is exactly what happened when a man of Chinese decent was walking with his mother past the Driftwood Beach Bar on the Isle of Wright in England, and overheard Simon Ledger playing 'Kung Fu Fighting'! According the The Sun, a British news paper, Ledger was arrested for such actions! It's just a song, and quite the classic as well! I highly doubt Ledger intentionally meant to offend anyone!