He asked if the husband was willing to try it out.
Both the husband and wife were very much in favor of it.
The doctor set the knob at 10% for starters, explaining that even 10% was probably more pain than the father had ever experienced before. But, as labor progressed, the doctor then adjusted the
machine to 20% pain transfer.
The husband was still feeling fine. The doctor checked the husband's blood pressure and pulse and was amazed at how well he was doing. At this, they decided to try for 50%.
The husband continued to feel quite well. Since it was obviously helping out his wife considerably, he encouraged the doctor to transfer ALL the pain to him.
The wife delivered a healthy baby with virtually no pain.
She and her husband were ecstatic.
When they got home, they found the mailman dead on the porch.