You're probably right, PittRottMommy. We don't mind Izzy going into the bathroom because she's pretty mellow. She doesn't attack anything in there. Poor Stella ruined it for her, though. We keep the bathroom door shut at all times unless it is supervised. . . except for the night we weren't watching and Stella went to town on the TP. We probably allowed Izzy in there and then behind our backs she told Stella to hurry up and work her magic (in exchange for treats she may save).