What sightings do you have of famous people doing mundane stuff? Prompted by walking past the Sainsbury's Local where I witnessed Peter Stringfellow buying a pint of milk (semi-skimmed).

Actually probably the most notable one I have is: a friend and I were in Sausage & Mash in Islington. Boris Johnson (then Mayor) pulls up on his bike, comes in and sits down with and chats to a tight-lipped woman and her three or four young children. After five minutes, he gives her a wad of money, then leaves.