When I was young and I was walking into a dark room I used to say “I know you’re in there” because i was afraid there was something hiding and I thought the might revel themselves early if they throught the jig was up.

I went through a period when i was a (pre)teenager where i thought it was funny to give the middle finger to the ceiling/corners of empty rooms in case there was a hidden camera there.

Sniper: perfect, thanks!