An 85 year old man goes to the doctor for his annual check-up.
 
 After examining him, the doctor proclaims him in excellent health
 for his age.
 
 The man says, "Hey Doc, I need to ask you a question. When I was
 25, I would wake up with a hard on like a steel pipe - I couldn't
 turn that thing with both hands!"
 
 "Yes", said the doctor, "That is normal for that age."
 
 "And," said the old guy, "When I was 50, I could turn it with one
 hand."
 
 "Yes, that happens." said the doctor.
 
 "Now", said the old guy, "I can bend it with one finger!"
 
 "That's normal for your age." replied the doc.
 
 "But Doc", said the old fellow, "When am I going to stop getting
 stronger?"