LOL I agree Other Mummy. It is a "changing of the guards". Love that name for it. I had a little one who was so awful with this that I spoke to his Mom and told her that he had to learn to accept that this was my house and my rules. That even if Mommy was here that I still "trump" Mommy until he is out my door. I had to discipline him and put him in a couple of time outs while Mommy was right there in the room just as I would do if she wasn't. It only took two times of doing this and it NEVER happened again. He learned pretty quick that I was still the boss at my house :-)