Poor little Nugget being scared of his shadow; bless this little cutie pie. Yes, I think CMB and Cypher's suggestion will definitely help with his fear of having the roof of his house lifted. It will also do wonders if you were able to handle him outside of his cage more, too. It will help him gain confidence in being interacted with and will be a wonderful bonding time for the two of you as well. I hope that the handling goes well and you both have plenty of fun times together.