75 year old Alf comes home from golf and tells his wife, "I'll have to give up golf my eyesight's going, every time I hit long drive, I can never see where the ball lands."
His wife says, "Why not take my brother George, he's 85 but his eyesight is perfect, he'll tell you where the ball landed."
The following day George accompanies Alf to the course and Alf hits a screaming long drive off the first tee.
"Did you see where that went George?" enquires Alf.
"Yes I followed it all the way.",answers George.
"Where exactly did it land?", asks Alf.
"I can't remember.", replies George.