"That's right," said Bob. "Heading for Acapulco."
"You must be excited!"
"Yeah," said Bob, "but I'm also a little concerned. During the last three vacations, my wife has gotten pregnant. Last year it was Hawaii, she got pregnant. The year before that, Las Vegas, pregnant. Year before that, Costa Rica, pregnant."
"Wow!" said Dave. "Are you going to take precautions this time?"
"I sure am! For one thing, this year I'm taking her with me."