A risky business

A young man went into a snack-bar for lunch and took off his overcoat. He knew the kind of people who went to that snack-bar so he took a piece of paper and wrote on it:

"This overcoat belongs to Bill Baslier, the famous athlete, he will be back in ten minutes", and fixed this on the coat.

When he came back, the overcoat wasn't there, but on the paper someone had written:

"Overcoat taken by famous runner. He wont be back at all".