When I was pregnant with Nehemiah, I struggled with car-sickness more than normal, and was always chewing mint gum to help. My kids caught on to this, and began to mysteriously have "car-sickness" every time they rode in the car, so they could have gum!
This morning Lizzie was sitting at the kitchen table working on her math and asked for a piece of gum. I told her "no" and she said, "but, mom, I'm homesick!" :)