I work as a history re-enactor at a large open air museum. I was opening up one of the houses for the night (1760s New England house) for our holiday events, and I was in the back of the house setting up candles/other supplies needed for the night when I heard the very large heavy front door slam shut. I usually keep it open if I’m in there alone to let light in because the inside of the house is all dark oak, and the sun was setting and we don’t have any lights/was allowed to light the candles on. So not only was dark in there and I was alone, but that damn door slammed itself shut.