I have a habit of using a flashlight to go to the toilet in hotels or unfamiliar places, so I don't stub my toe or other stupid stuff when doing the nightly toilet sleep walk.

So I grab the flashlight, point it around and notice a glint from the ceiling fan. The ceiling fan didn't have an IR remote so it didn't make sense and yup, sure enough it was a little lens that conveniently pointed towards the bed.

Fun thing: We actually signed a waiver that the house uses cameras, since there were a view regular ones on the perimeter for security, which seemed logical. That asshole really tried to play the "but you signed that you're okay with being filmed" card.