OLD MAN wants a baby

An old man (86 years  old) talking to his doctor.
"Doc, my wife and I are thinking of having anothe child."
The doc said "Aren't you a little old to have a child?"
The old man says " My wife and I think we can handle it!"
Doc says "I've checked out your wife and she's O.K., so
here is a vile. Take it home and fill it with seman, return
it to me and I will test it."
The next day the old man returns to the Doctor and gives him
the vile.
The doctor looks at it and says "Sir, the vile is empty!"
The old man states " I tried with my left hand, then I tried
with my right hand.  My wife tried with her left hand, and then
with her right hand. She then took out her dentures and tried with
her gums."
"But neither one of us could get the cap off!"