A woman, driving on a country road, got stuck in a snowdrift. She
flagged down a farmer on his tractor and asked him if he would pull
out her car. As he fastened a rope to her bumper, he said, "You
know, you're the third pregnant woman I've pulled out of the snow
today." She replied, "Oh, I'm not pregnant." And he said, "Maybe,
but you're not out of that snowdrift yet, either!"