Arthur is 90 years old.
He's played golf every day since his retirement 25 years ago.
One day he arrives home looking downcast.
"That's it," he tells his wife. "I'm giving up golf. My eyesight
has got so bad. Once I've hit the ball, I can't see where it went."
His wife sympathizes. As they sit down, she has a suggestion:
"Why don't you take my brother with you, and give it one more try."
"That's no good," sighs Arthur. "Your brother is a hundred
and three. He can't help."
"He may be a hundred and three," says the wife, "but his eyesight
is perfect."
So the next day, Arthur heads off to the golf course with his
brother-in-law. He tees up, takes an almighty swing, and squints
down the fairway.
He turns to the brother-in-law. "Did you see the ball?"
"Of course I did!", says the brother-in-law. "I have perfect
eyesight."
"Where did it go?" asks Arthur.
"Can't remember."