Ludwig, I think the assumption is that I am the argumentative one.
I am not really dismissing them, I am suggesting that saying something was a ghost may not always be the right answer, or the only answer. It could be possible, just not the only possibility. People will either convince themselves they have seen a ghost, or not. And once they have decided, it would appear to become unquestionable, undeniable fact.
As with dreams, I think our minds and subconscious are subjected to zillions of subliminal messages every day through things we see, hear and experience. These occurrences are stored and jumbled about in our minds. Occasionally they resurface in a dream, or sudden sense of d�j� vu, sometimes things just happen by pure coincidence and it perks up our senses as we try to explain it. Pareidolia, the human mind tends to see patterns or visions where none exist. My house is built on a Roman burial site (as are many others of course). Once I explained this to my wife - about 6 months after moving in � she began to imagine all kinds of things going on. Prior to that, she wouldn�t have even batted an eyelid at a pipe contracting after the heating went off, or the wind blowing a door closed. The other evening she even saw a strange and spooky light at one of our windows. It is fortunate for me in many ways, that my wife is quite suggestible :o)
I cannot really go with the �numbers� argument. Because as I said before, by the same token we would have to accept that all those people really did see little green men in UFOs or were abducted and experimented on by aliens, or that all those people who claimed God spoke to them and told �em to do something were also telling the truth. It might be true, but is it something you could accept without challenge or question or personal consideration/doubt?