I believe in ghosts. Like in our old school, in one room, the door would be closed shut tight to our classroom, and everyone would be sitting in there seats, and it wouldn't even be windy, and then suddenly, the door would open. Once we even saw the handle move, and NO-ONE was outside the door.
And then there are things where I feel someone or something watching me, but nothing is there.
And it can be perfectly warm, and I get a sudden shiver. I've heard that ghosts do that if they walk through you or something..
It hasn't been completely proven or completely disproven. I reckon ghosts are the restless spirits of our souls, when we die. (Something like that..)
*shivers and darts looks around* All this talk of ghosts is creeping me out. (No, i'm not paranoid).
EDIT: Typos. >.<