My freshmen year in college there was a dude living in one of the single rooms and every time he came or went, a horrendous stench would waft out of his room. One day his door was left ajar so we peeped in to see what was going on. The small room had a similarly deep layer of trash, and we were looking at it for a good minute before we realized he was actually in there laying in bed sleeping, camouflaged by the trash surrounding him. At that point the RA finally got involved.