A married couple went to the hospital together to have their baby delivered. Upon their arrival, the doctor said he had invented a new machine that would transfer a portion of the mother's labor¹ pain to the father. He asked if they were willing to try it out. They were both very much in favor of it.

The doctor set the knob to 10 percent for starters, explaining that even 10 percent was probably more pain than the father had ever experienced before. 

But as the labor progressed, the husband felt fine, so he asked the doctor to go ahead and bump it up a notch². The doctor then adjusted the machine to 20 percent 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 decided³ to try for 50 percent.

The husband continued to feel quite well. Since it was obviously helping⁴ out his wife considerably⁵, 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, the mailman was dead on their porch.

简介：一对夫妇去医院，女的面临生产，医生告诉他们他发明了一个能将产妇生产过程中的疼痛转移到孩子父亲身上的仪器，夫妇俩高兴的想试一下，可是在生产过程中，医生把旋转钮调到 10% 疼痛转移， 20%， 50%， 丈夫都没感到任何不适，最后干脆调到了 100%，可是丈夫还是一点都不疼，同样的，妻子感觉也很好。医生觉得非常惊讶。当夫妇俩兴高采烈的回到家后，才发现常给他们送信的邮递员死在他们家门口了。