Years ago I had just delivered twins. They were a boy and a girl. The head nurse brought them out for their father to see. He could hardly believe his good fortune. The girl baby had a pink blanket wrapped around her and the boy baby was enclosed in a blue blanket.

He took one step forward just so he could touch the babies and believe they had finally arrived. As he started to touch them the nurse took a step backward and said, "You can't touch those babies, you aren't sterile!"

Without missing a beat my husband retorted, "Obviously, I'm not sterile!"