Hey, kids (between roughly the ages of 5 and 8)!
If you fall asleep on a long car trip (say, coming back from your grandma's house), but happen to wake up as your parents are parking the car in your driveway... here's a tip! Act like you're still asleep. That way, your dad will carry you from the car to the house and then your mom will tuck you into bed! You won't have to move a muscle!
(Plus, it's a gentle, reassuring reminder that your parents care for you)