That makes sense. He does seem unreasonably happy.
I wonder how it would affect someone to live underground for some time. Would it reset their biological clock? What would their sleep pattern become?
I have actually looked into conducting such an experiement. My thought was to keep a female in a cave (with a strong door) or a cellar. I checked with a lawyer, the police department, and the local Chamber of Commerce about such a project, and received the same answer. As long as I had a permit, which costs $20.00, I could keep a female for two years. The permit has to be renewed then, and if the girl escapes I do not get a refund. I was also informed if the female was a citizen of another country (tourist) or in this country without proper papers, the fee was only $15.00.
This may only be a Missouri practice so anyone considering such a project should check their state's laws. Missouri statutes dating back to 1840, allows the use of females in scientific experiments.