"My mom won't tell me a thing about herself," a little girl complains to her friend.
"Well," says the friend, "all you need to do is look at her driver's license. It's like a report card, it has everything on it."
The little girl checks out her mother's driver's license and later that night says to her, "I know how old you are mommy. You're 32"
"I also know that you weigh 130 pounds."
The mother is past surprised and is shocked now. "How in the world did you find that out?"
"And," the little girl says triumphantly, "I know why you and daddy got a divorce."
"Oh really?" the mother asks. "Why?"
"Because you got an F in sex."