One evening after work John drove his secretary home after she was unable to start her car. Not wanting to bother his wife, Maureen, he decided not to mention it to her.
Later that night John and Maureen were driving out to eat when the John spotted a high-heeled shoe hidden under the passenger seat. Pointing to something out the passenger window to distract his wife, he picked up the shoe and tossed it out of his window.
They arrived at the restaurant a short time later and were about to get out of the car when Maureen enquired, 'John, have you seen my other shoe?'