Haunted by the Grey Lady at Bath Theatre Royal

Some years ago I was photographing Bath Theatre Royal; and wanted a picture from the Grey Lady box that is said to be haunted.
I was in the box when to my horror I watched one of my flash heads (they cost £150 even 25 years ago) topple over the edge of the circle and crash to the floor of the empty theatre.
I was quite certain that the flash head had been standing on a good surface and was quit secure.
I have often wondered if the Grey Lady gave it a push because I was in her box.