Please note that it is not neccesary to lock the door while you are inside of the room. That is all.
On a related note, trying to balance a plate on top of your hand that you are holding stuff in while unlocking the door with your other hand is not a good idea. I do not recomend it.
On a related note, I sure hope the wall was clean because I used it to help catch my cheescake after it fell off of my hand, and I still plan on eating it.