John wearily trudged into his house and laid down his bag of golf clubs. "How was your game, darling?" asked his wife, Jane. "I was hitting the ball ok, but my eyesight's gotten so damn bad I couldn't see where the ball went." shrugged Bob.
"Well, you're 75 years old," said Jane. "You can't expect everything to be like it was. Why don't you take my brother Jim along?". "But he's 85 and he doesn't even play golf any more..." protested John. "But he's got perfect eyesight," Jane pointed out. "He can watch the ball for you."
So the next day John teed off with Jim looking on. He swung and the ball disappeared down the middle of the fairway. "Do you see it, do you see it?" asked John in anticipation. "Yep!" Jim answered. "Well where is it?" exclaimed John, peering off into the distance.
"I forgot," said Jim.