Once my friend went over to my other friend's house and when my friend went back to her house it was my other friend's house, without the furniture. Kinda freaky. o,o
That happend once. I think it happens when it stays in the same spot for DAYS.
That happend to My Yorkie once, and she was sleeping. I went to my playroom, and i looked like she was sleeping on the dresser with Farming Frenzy on it XD
Also, another time, I had someone's pet over at my house, and I couldn't find the pet anywhere. It was not in my house. Then a few minutes later, I saw the pet floating in the corner, but it wasn't in the room.