I find this article here interesting (Haunted village "cancels halloween")

Why do spirits scare people?? They are just like US except you cannot see them!

If you've ever seen shows like "A Haunting" on discovery channel, you know that spirits/ghosts are quite different than living human beings. In one episode, a ghost made a guy have homicidal thoughts about his wife. And another time, a ghost "scratched" a guy and he had huge marks all over his body. Sorry for the mini-rant but its a very entertaining show, whether you believe in ghosts or not. :)

I have heard , there are bad ghosts and good ghosts , good ghosts stay away from human beings , bad ghosts try to scare humans .