A couple, both aged 70 went to a sex therapist'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 finished, the doctor said "There's nothing wrong with the way you have intercourse" and charged them $82 for the session. This happened several weeks in a row. The couple would make an appointment, have intercourse with no apparent problems, pay the doctor and then leave. Finally the doctor asked 'Just exactly what are you trying to find out?" The old man replied 'We're not trying to find anything out. She's married and we can't go to her house. I'm married and we can't go to my house. The Holiday Inn charges $90 and The Hilton charges $108. We do it here for $82, and I get $68 back from Medicare.