Fair play to anyone who can truly relax in someone else’s home. If I’m left alone in a house as a guest, I will sit still and upright, quietly watching the TV channel they left on for me, occasionally taking a sip of tap water from the only drinking vessel I could find (a mug left on the side) which I will then wash up at the sink even though they have a dishwasher. Eventually they’ll come home and say “why are you sitting in the dark?” Because the sun went down and I didn’t want to take the liberty of turning on your lights.