1. His Fault
　　
　　Billy: Mother, Bobby broke a window.
　　Mother: How did he do it?
　　Billy: I threw a stone at him and he ducked.
　　
　　2. The Careless Doctor
　　
　　Doctor: How are you now, John, after your heart operation?
　　John: Well, Doctor, I’m fine, but I seem to have two heartbeats.
　　Doctor: Oh, dear, I wondered where my wristwatch had gone.
　　
　　3. Hard Work
　　
　　A bum approached a man and asked for a dime. The man told him he didn’t have dime but he’d be glad to buy his breakfast.
　　“Man,” the bum said, “I’ve had three breakfast now, trying to get a dime.”
　　
　　4. More Reliable
　　
　　We were discussing various kinds of clocks in my kindergarten class. “Now you have an alarm clock at home, don’t you?” I asked one of the pupils.
　　“Oh,no,” he replied, “we don’t need one. We have a grandmother.”