Tom realized he had screwed up. When he switched bodies with the cab driver in the magic taxi, he realized that he could now switch bodies with anyone he ended up picking up. He wanted to select well, maybe even find someone famous. He hadn't intended to switch with a housewife. He had listened to her yammer on about her boring life, but he never intended to say the magic words of "Have a nice day, Ma'am," but he ended up doing so anyway. He quickly realized his mistake and tried to flag down the taxi once more, but it was long gone.