A couple, aged 67, went to the doctor's office.
The doctor asked "What can I do for you?"
The man said "Will you watch us have sexual intercourse?"
The doctor looked puzzled, but agreed.
When the couple had finished, the doctor said,
"There is nothing wrong with the way you have intercourse"
and he charged them $16.00.

This happened several weeks in a row.
The couple would make an appointment,
have intercourse, pay the doctor and leave.
Finally, the doctor asked,
"Just what exactly are you trying to find out?"

The old man said, "we're not trying to find out anything.
She is married and we cannot go to her house.
I am married and we cannot go to my house.
Holiday Inn charges $60.00.
Hilton Hotel charges $72.00.
We do it here for $16.00 and I get
back $12.80 from Medicare
for a trip to the doctor's office."