Peter is a good golfer but is frustrated because he could not see where his ball lands all the time.
His wife advised him to bring his father in law who is 90 years old along because he has perfect eye sight.
So Peter went for another round of golf and brought his father in law along.
He teed off with a perfect shot and happily asked his father in law where the ball has landed.
His father in law said he saw exactly where the ball landed and they drove the buggy forward.
But they could not find the ball.
Peter : Did you see where the ball landed just now?
Father in law: Yes.
Peter : Where is it?
Father in law: I forgot