Right near Jamie Oliver's restaurant we spied this Banksy graffiti. Banksy is an 'urban artist' (he'd probably hate that description!). He does stencil graffiti around London (and the world for that matter), tongue in cheek, humour at the ready, ascerbic witty observations and comments on whatever he wants. I always feel good after I've seen a Banksy. Never bothered to think about why!