A doctor started an affair with his nurse. Shortly after this started, she announced that she was pregnant.

Not wanting his wife to find out, he gave her a large amount on money and asked her to go out of the country, to Germany, to wait out her pregnancy and have the baby over there.

"But, how will you know when our baby is born?" she asked.

"Well, he said, "after you've had the baby, just send me a post card and write 'sauerkraut' on the back."

Not knowing what else to do, she took the money and went off to Germany.

Six months went by. Then one day the doctor's wife called him at the office. "Dear, you received a very strange post card in the mail today," she explained. "I don't understand what it means!"

"Just wait till I get home and I'll read it," he replied. Later that evening, the doctor came home and read his post card which read:

"SAUERKRAUT, SAUERKRAUT, SAUERKRAUT, TWO WITH WIENERS, ONE WITHOUT!!!"