My Dad always laughed off anything to do with ghosts as ridiculous, but personally I do believe in them. To be honest the thought scares me, it really freaks me out to think another "person" could be in the same room. I know people who have said they've seen one, and can describe them so clearly. Although I've lost people who I hope are not completely gone, I prefer to think that their spirit still exists, but not in the sense where they exist as a ghost.....that's just spooky...