When you have the time, take a video camera and film the inside of your bathroom for about 10 minutes. The next time that you host at a party at your house, have the video with you. When someone goes to the bathroom, put the video in your TV and play it. While you play the video, be sure to pretend to laugh. When the person comes out of the bathroom, they will see you and everybody else laughing at an empty bathroom. Get it?? HAHAHA!