" What’s happened?” screamed Mrs. Twit. They stood in the middle of the room, looking up. All the furniture, the big table, the chairs, the sofa, the lamps, the little side tables, the cabinet with bottles of beer in it, the ornaments, the electric heater, the carpet, everything was stuck upside down to the ceiling. The pictures were upside down on the walls. And the floor they were standing on was absolutely bare. What’s more, it had been painted white to look like the ceiling. "

― Roald Dahl , The Twits