Little miss Haana has moved to another bedroom a couple months back. I have actively resisted, desisted and discouraged the idea and its execution. However it has still come to pass. I miss her, and I still have all kinds of stipulations of how much time she can spend all by herself (away from me), i would say I've only had partial success.
Anyhow one day a notice of "Please Knock" went up on the door of her room. This can only mean one thing. To go in the room and look around and then, and only then, knock at the door or wall of any knock-able surface.
Miss Haana didn't think that was the expected behavior..