A primary school teacher was giving her pupils a lesson in logic. "Now imagine this," she said. "A man is standing up in a boat in the middle of a river, fishing. He loses his balance, falls in, and begins splashing and calling for help. His wife hears the noise, and knowing he can't swim, runs down to the bank. Why do you think she runs to the bank?"
A little girl raised her hand and asked, "Was it to draw out all his savings?"