A shop owner closed his shop and went home. He was very tired, but just as he went to bed, the telephone rang. A man asked, "What time do you open your shop?"
The owner was annoyed by the call. He put down the phone without answering and went back to bed. A few minutes later, the telephone rang again, and the man asked the same question.
The owner became furious and shouted, "You needn't ask me when I open the shop, for I won't let you in!"
"Oh, no, I don't want to get in," the man said. "I want to go out now."