My wife and I were helping a friend with a production she was putting on at Piper's Opera House in Virginia City, Nevada. Piper's has been around since the Comstock days, c. 1860, and it's currently being renovated to it's past glory.
Anyway, my wife and I were backstage in a wing helping setup props for the show when my wife looked up onto a loft and said, "hey, where did that come from?". I looked up and didn't see anything and asked her what she saw. She said, "that headless mannequin--it wasn't there before". I didn't see anything and went about my business.
Later, my wife was recounting the tale to some other people there that night and supposedly that "mannequin" was one of the ghosts that haunts the old Opera House.
Believe it...Or Not!!