Did Banksy give artwork to a boy who picked up his paints?

A schoolboy is waiting to hear if a picture he was given is a real Banksy, handed over by the artist himself. Ben Azarya, 14, was on a train in Cumbria when he helped a stranger pick up his paints when they fell out of his bag.

Ben said: "He dropped a few of his paints. After I helped pick them up, he pulled out a piece of paper and he said 'do you know who Robin Banks is?' I said no, then he signed the paper 'Banksy' in some weird symbols. He was like 'this is worth 20 grand, have a good life brother'."

This clip is originally from Breakfast on Friday 9 January 2015.