After many years of work, Jack retired and started playing golf. He was at the course almost every day, but after a few years, he stopped.
When his wife asked why, he told her: "My eyesight has deteriorated. I hit the ball, but I have no idea where it flies. It takes all the fun out of it."
The wife thought for a moment and said: "Ask my brother Nathan to help you. He's eighty-five, but his vision is excellent."
Jack raised an eyebrow. "Do you really think so?"
"Don't worry," she said, "Nathan sees like a hawk!"
The next day, Jack and Nathan went to the golf course together. Jack positioned himself at the first tee and hit the ball straight into the trees off the fairway. "Did you see where it went?" he asked his brother-in-law.
"Of course!" said Nathan proudly.
Jack tried again, and this time the golf ball flew over a distant hill. "Did you see where the ball went?" he asked.
"Yes," answered Nathan, "I saw exactly where it went."
Jack, satisfied and ready to move on, asked, "Where do I need to go to collect the first 2 balls?"
"No idea." answered his brother-in-law.
"What do you mean, 'no idea'?" asked Jack angrily, "I thought you saw everything!"
"I saw," said Nathan, "but I don't remember..."