In a similar vein, it seems these days that every time a character walks into a dark room to check something out (not just wandering around aimlessly), they fai

In a similar vein, it seems these days that every time a character walks into a dark room to check something out (not just wandering around aimlessly), they fail to turn on the lights, which is something I think most people would do first. And not just horror films trying to scare you - for example the recent movie "Tár" has at least one scene just like this.