Like many Americans, I've been heavily influenced by movies and TV shows. In fact I'd go so far as to say that it's been my primary source of education, as depressing as that sounds.
And because of this influence, there are certain "genres" of life that my mind's sequestered into their own categories. I have to be in a certain mood, location, or ambience to give credence to a particular way of thinking. For example, when I was working alone at some hospice at night in college that doubled as a church and funeral home, because I've seen plenty of films where the overnight guard gets murdered by an escaped patient or some monster lurking in the shadows that's yet to be fully revealed to the audience.