A married couple went to the hospital to have their baby delivered. Upon their arrival, the doctor informed them that he had invented a new machine that would transfer a portion of the mother's labor pain to the father. He asked if they were willing to try it out.
The mother was all willing and the father, wanting to show his support, consented. The doctor set the pain transfer dial to 10% for starters, explaining that even 10% was probably more pain than the father had ever experienced before.
But as the labor progressed, the husband felt fine and asked the doctor to go ahead and bump it up a notch. 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 was amazed at how well he was doing. At this point they decided to try for 50%.
The husband continued to feel quite well. Since it was obviously helping his wife considerably, the husband 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, but when they arrived home, the mailman was lying dead on their porch.