I haven't been to the bathroom by myself for so long I'm afraid that should I actually get to lock the door, my two guards would be traumatized at me being by myself!! No telling what might happen to me without them!! Fredrica, the white little lady Persian, would sit there staring at the door, willing someone to come and open it for her. Koko, the half Siamese, would try to grasp the door handle, then stick a toe under the door and try to pull it open, then hurl his body against it to try to force it open. By then I'm usually so amused or irritated that I'll open it for them and march out, to their disgust. The fact I have a jar of treats for them in there might have something to do with it too.