I worked in a restaurant that was haunted. Used to f-ing terrified to be there alone. Cold drafts, lady with an old fashioned dress like a ghost from a movie disappeared around corner of the dining room a couple times (I will admit this might have been my imagination), stuff just randomly falling off walls (framed art) and shelves when no one was around, etc. I don’t expect anyone to believe this but it was nuts and a lot of people experienced it.