A bizarre one
As unlikely as this sounds it really happened.

I was standing behind a tramp on the underground a while ago, on the escalator - he was a traditional, "fun" type tramp, but he had matted ginger hair down to his waist. In front of him were two japanese teenagers. They had matching yellow rucksacks on so they must have been on some kind of school trip.

The tramp started going "arr soor! aaaar soooor I'm Bruce Lee!" and karate chopping the air.

I was cringing at this basic level of slightly racist humour, until one of the boys turned around, waggled his fingers at him and said "arr soooor! I'm Mick Hucknall".
( browser still relating boring anecdotes into a void on, Fri 3 Jul 2009, 11:41, 2 replies)

Bwhahahaha :D
That taught him! Had me in stitches imagining this, brilliant comeback
( LemonEntryMyDearWatson This time, Moriarty, the hand is on the other foot, Fri 3 Jul 2009, 11:53, closed)

heh...
Superb comeback - have a click
( snee held his breath since, Fri 3 Jul 2009, 12:44, closed)