I just got back from a one night stay at Pop, and I had forgotten/didn't know about this policy (haven't been to the World for a couple of years and remember seeing thread titles about this on the DIS but didn't think of it for this quick, unplanned stay). I had just checked in and had been in my room for ten or fifteen minutes when someone knocked on the door. I was in the bathroom and yelled "just a minute please", but he apparently didn't hear me. He opened the door just as I pulled the bathroom door closed. I didn't see him, but he said something and closed the door. I washed my hands and went to the door and no one was there. I'm guessing this was a room check since I didn't use bell services or call for maintenance, and there is no need to make up a room that had just been given to someone. From now on, I will latch the door even if I am just in the room for a few minutes. It would have been nice if they had explained the policy when I checked in.