U probabily wont believe this.My friend told me this one.she use to live in this apartment with her dad and sister.After her sister moved out she always kept her sisters bedroom door open.She kept a long heavy pole that she could hardly move along the bottem of the door.Well one night she heard a Creeking sound that sounded like a door.When she went out to look her sisters door was all the way shut.And the pole was all the way out in the hallway.They didnt have a fan no window was open they didnt even have mice. She moved the pole back and opened the door. Well the same night in the middle of the night she heard another door creeking. she went out and the door was closed. BUT WHAT WAS CLOSEING THE DOOR!? Will we ever know.