I was watching a police procedural, the other day.
There was a scene where the cop, hero of the TV series, entered a dark room to find the “bad guy”. The room was dark and what does the guy do? Switch on a flash light.
I always wondered, why switch on the flash light. Doesn’t it make the cop easy to spot? He should probably roam around quietly, creep up behind the and perhaps say, “BOO”. I bet the bad guy would need an immediate change of pants along with a pair of jewelry on their hands.