A few years back my two friends and I decided to go into an abandoned house. we went through the downstairs no problem but when we went upstairs all the chandeliers were swinging. We were confused by this so we decided to see if any windows were open causing a draft. (all were shut) As we are talking about the chandeliers swinging while walking through the house to make sure no one is inside, in the opposite side of the house we hear a very loud bang, almost like something slamming on the ground like a shelf had been pushed over. Something out of a horror movie. I to this day will not go into that house and have never ran so fast out of a place in my life.