A 75 year old man went to his doctor's office to get a
checkup. The doctor gave the man a jar and said, "Take this jar home and
bring
it back to me with a semen sample tomorrow." The next day the 75 year old
man
reappeared at the doctor's office and gave him the jar, which was as clean
and
empty as on the previous day. The doctor asked what happened and the man
explained: "Well, doc, it's like this... First I tried with my right hand,
but nothing.
Then I tried with my left hand, but still nothing. Then I asked my wife for
help. She
tried with her right hand, then her left, still nothing. She even tried with
her mouth,
first with the teeth in, then with her teeth out, and still nothing. We even
asked Mable,
the lady next door. She tried too-first with both hands, then an armpit.
She even tried
squeezing it between her knees, but still nothing." The doctor was shocked!
"You asked
your neighbor? The old man replied, "Yep, but no matter what we tried we
still couldn't
get the damn jar open!"

Good one!