Q: When do you know your grandfather is old enough to retire?
A: Instead of lying about her age she start bragging about it!
Q: Why do grandpas count pennies?
A: They are the only ones who have the time.
Q: Why do Grandpas smile all the time?
A: Because they can't hear a word you're saying!
Q: When is your grandpas bedtime?
A: Three hours after she falls asleep on the couch.