How could anyone be so stupid?
It is this question we invariably ask while reading horror stories or watching horror films. To the vexation of viewers, characters in horror films are in the habit of naively walking down dark hallways, getting lost in the woods after sundown, and picking up hitchhikers in the middle of nowhere. If the characters in a horror story are not uniformly stupid, their IQs nonetheless dip in clutch situations. We shout advice to them, marvel at their blindness, and when they get skewered, we have a hard time really feeling bad for them.