A well known ghost-history story writer once said that he was never scared of such things before he took the Waverly tour!
As their group was walking down a dark hallway, a brick flew out of the darkness and caught their tour guide alongside the head!
They dimly could see a person running away wearing a white shirt that had o lower body! They gave chase and found themselves in a dead end situation with no explanation or idea where that "person" could have hidden or exited to.
One tv show had a brick flying across the room (not hitting anyone) having the two ghost hunters running scared like little children!
Then they interveiwed a collage professor that said, " Bricks are HEAVY, we could see no big strings that would be needed to lift the HEAVY brick....faulty thinking (or no experience?) on the Proff's part because I have made styrofoam bricks that looked Very Real that weighed "nothing".
They could be "thrown" accross the room with the compressed air from an aerosal can.
Customers coming to my house tell me ghost storys almost every week and I believe most of their stories, most of the time UNTIL they begin to sound like a Hollywood Horror movie!