I grow up listening the horror stories by my brother-in-law, whose family is much related with this kind of phenomenon. He was always talking about all the different ghosts he had watched. The worst came when he got his closed circuit camera some years ago. He has recordings of objects moving, lights (orbs), doors opening, the same camera being manipulated, all this in the middle of the night. Not fake. Supposedly he knows how to deal with those beings.