I got this from the Virtual Medic site and thought it good enough to share.

An old doctor gets an emergency call in the middle of the night. He responds and finds himself at a small homestead in the middle of the bush. Inside he sees, by the light of one bare bulb hanging from a wire, a woman in labour and a five year old girl.
As the girl holds the light for him to see, he delivers the baby. As he picks it up and spanks the first breath of life into it, the little girl says, "Hit him again! He shouldn't have crawled up there in the first place!"