When somebody tells u their couch is missing put on the Rat suit and go the desert where you will see it. now walk up to it and it gives u the full option menu available in your room or guestroom.Select SIT and your person will start walking in circles u now the STAND UP option is available, select it and you will disaper for 1 second!!!!!!!!!!!!!!! :D
P.s. save before 'cuz ur game will stay like that for a looooooooooooooooooong time.