There is a coil door stopper on the back of the bathroom door. Camrose figured out that it was a great way to let David know when she wanted to get out of the bathroom. So for the past several days, she would paw at the spring coil for a few minutes, then wait, paw again, then wait.
Subsequently, she was driving David CRAZY with how loud she could get the spring to be. David would storm into the bathroom and tell her to stop, but right after he would close the door she would start up again.
I think the phrase, "There is no reasoning with a two-year-old," is also true of dogs.