Indisputably our bed. The dog does not know all the things about the bed that make it such a glaringly different object to us. He may, indeed, come to learn that there is something different about the bed—by getting repeatedly scolded for lying on it. Even then, what the dog knows is less “human bed” versus “dog bed” but “thing one gets yelled at for being on” versus “thing one does not get yelled at for being on.
