Happy belated birthday to Nugget. He must have really enjoyed that cheese! Glad he got over his fear and moved back into his house again, bless him.
I haven't had a house setup with a detachable roof before. It seems like quite a good idea so you can check on them without having to lift out their whole house.
Since my Syrian has a shoebox all his room service treats get left on a spoon in his doorway where he promptly devours them and then goes back to bed