Adam's first introduction to crime happened when he was about four or five. He noticed a packet of chewing gum on the floor, just lying there. Adam thought that it must be free, because no one wants it. So he took the gun and put it in his pocket. His dad walked into his bedroom and found him chewing the gun. And he realized that Adam had not paid for the chewing gum. Now, if you don't kind of understand the details, you probably don't think it's funny. But I'm going to try and explain some of the language which Adam used in the story. Joe Cornish: This week I was thinking about petty crime.