Sorry about the london-centricness and all. But since we were talking about him on here the other day, I couldnae resist.

The chap who comes up to you, flashes a 'wound' on his arm, claims to have come off his bike, and begs for some money to get to the hospital:

http://vice.typepad.com/vice_magazine/2008/04/london---cut-th.html

They got a picture of it! How on earth did I think that was real?