You're home watching tv, and the door bell rings. You go to answer it and somebody's there with a pizza. You didn't order one, but you guess it was your lazy roommate, who is a broke bum. You say you'll get money for them in a moment The box feels very hot, so you rush to the table to put it down. When you open it, there's no pizza. You turn to the door, and the pizza guy is gone. You didn't hear the car leave, but it's gone. There's no trace of him anywhere, or his car. THEN WHO WAS PIZZA!?