Tired Out?

A teenage girl had just been given family-car privileges, when she returned home very late from a party. The next morning her father went out to the driveway to get the newspaper and came back into the house frowning. At 11:30am the girl sleepily walked into the kitchen, and her father asked her, "What time did you get in last night?" "Not too late, Dad," she replied nervously. Dead-pan, her father said, "Then I'll have to talk with the paperboy about putting my paper under the front wheel of the car."