A small town doctor was renowned for his accuracy on predicting the sex of a child early in the pregnancy
When he was retiring, they asked him how he always got it right. He laughed and said, “I would tell the mother my prediction, and then immediately write down the opposite sex in my notes.” “If I was correct, they would always tell me that I nailed it; if I was incorrect, they would chastise me, and I would then show them the note and say they were mistaken, see, it’s here in my notes.”