I sent my six-year-old daughter to deliver some lemons and oranges from our yard to the widow next door. Worried that she might rudely deliver the fruit and leave without a word, I called to her, “Don’t forget to say, ‘You’re welcome.’”
When my daughter returned, she gave me the full report: “I rang the doorbell, and when the lady opened the door, I said, ‘You’re welcome!’ and handed her the bag.”