I really had a very good laugh today (this is a true story):

A family friend has a friend who has a photographic studio. He recently had a query from a lady about a photo that she wanted him to deal with digitally. It was a photo of Prince Charles and Lady Diana (so a bit old) and she wanted to know if he could remove the policeman who standing behind them. The photo man said that yes, it would be possible. "Oh good, because I'm standing right behind the policeman!"