People just like the thrill of anything. Dangerous things and dark things are exciting. Like as a kid, I knew I wasn't going to get killed if I went into the Haunted House but you kind of feel like you are. And when it comes out the track the other side, it's like, "we're still alive"! And I find it really funny when adults get really scared because I've not been really scared since I saw Jaws when I was a little kid. I just think people like the thrill of it, they like to feel like they accomplished something, that they survived the movie.
Rob Zombie