I don't believe in ghosts either.
That those who have 'gone on' would not affect us in any way. Even if they somehow were able to "roam" earth, of which of course, no evidence would be found.
Also I would never believe in the haunting stories, simply because 'haunting' implies a sort of 'ominous' control that would defy my religious beliefs...
^ You must have missed the mentioning of it then.
~I'm agnostic. I believe in spirits. Ghosts I doubt. As for the God thing, I was talking to this guy some years ago on the bus (local transit) and he reached for my hand as he said that "pray with me" thing. I now have a small egg shaped 'patch' just down a bit my left wrist where arm hair refuses to grow.