The exact same thing was tried with my Mum getting on the 122 in Lewisham about 18 months - 2 years ago, but luckily she felt something pulling on her bag and turned around quickly before the thieving scumbag had grabbed her purse. He had his hand through a strategically cut hole in the bag he was holding to disgiuse what he was doing.

He got the verbal he deserved and jumped of the bus. Sounds like it might be the same bloke doing the rounds.

Dan