It is known, that when you´re inside a building or an area and you swap some of your clothing e.g. your pants, sometimes your "old" pants don´t appear on the ground in front of you, but often outside at the threshold of the building you´re in. Knowing that, makes it easy to recover your "old" clothes (and often the items they carry). Now the problem with the new school building is, that almost everytime I swap my pants, my "old" pants disappear, and i cant seem to find them anywhere, not at the threshold of the room nor the whole building, they´re gone with all the items I carried in them.