Part-time Job

When my son was a hign-school sophomore, he got a part-time job sacking groceries at a supermarket. He came home all smiles. "How was your first day?" I asked. "It was great, Dad," he replied. "I got to talk to some good-looking girls." Since Stephen is not very talkative, I asked, "What did you say to them?" "Do you prefer paper or plastic?"