This story took place at a fire station in WV.
My great grandfather was a fire fighter for over 20 years. While at the station weird things happened.
There would be rooms in the station with only one door and no windows, that you would hear things being moved around in. But when you looked there would be nobody in there.
Another time my grandfather was there for night shift and there were only a few other men. He was doing something when a black shadow figure started walking in his direction. As it got close he just stepped out of the way. He said for some reason he didn’t feel scared. It walked past him and into another room.
(This is a story that my great granddad told my Nana who told my dad who told me, so it might not be exactly what happened.)