I have had experiences, and I find ghost stories intriguing because I want to know the truth behind it. I don't know that I believe in ghosts in the sense of the spirits of dead human's remaining to haunt or walk the earth. I think when a person dies their spirit is no longer present on earth unless there is an unusual circumstance, like the Sammuel incident that was mentioned earlier.
I think that demons and angels will sometimes do things.
If it is frightening, causes confusion or doubts, or distracts people from truth, then the occurrences are demonic. If it is something helpful, then I think it was an angel.
I have seen things move when they should not have, and I've felt presences, seen things, and heard things.
Every time there has been something frightening going on it has been in a place where bad things happened, God was not believed, or pagan/Wiccan activity was going on, or had been in the past. There was one place where it was presented as "godly" and on the surface it looked that way, but there was much manipulation, twisting of Scripture, and corruption going on.