I halt on my heels just as a crash sounds in the distance. It's likely that a place this packed with objects would have occasional shifts and falls from time to time. The Room has a rather respectful tendancy if one knows how to negotiate with it, I learnt this tip after the fiasco with the DA (Dumbledores Army) that if one offers the Room an object of value to be looked after in your time inside, it will offer you absolute privacy, so I left my mother's necklace inside a chest near the entrance.