There is this lady and she is struggling having a baby so the doctor brings out these pills and he tells her each of these pills takes away a quarter of the pain, but sends it to the father of the baby.
So she takes one and her husband says "Women are wimps, I feel no pain"
Then she takes another and her husband says "Man this doesn't hurt."
So she takes, two more and has no problem having the baby and neither her nor her husband are in pain.
Two days later they come home with the baby and the milk man is dead on their doorstep