So my snake has outgrown his little rock hides so I got some kitty litter pans and cut them down to size. He was fine and used them for about 2 weeks. Then he decided it was better to hide behind the hide rather than inside it. I had the opening just barely bigger than he was, so I made it even bigger but still refuses to go inside. If I stick his head in he'll crawl in for a few hours but before long he's back behind. Does the same thing on both ends of the cage.