I do believe in ghosts, but I don't, if you know what I mean. Sometimes, I see kind of, like, images of people/animals whom I knew walking about. But sometimes I think that a ghost just may be a select image of a person/animal/plant/whatever replaying from memory.
Freaky thing that happened to me... hmm... at my old house, we had this REALLY old alarm system that went off every time somebody in the family died. I am not lying, this sincerly did happen *shudders*
I'm sleepy now..