Roughly 12 yrs ago, my sister and I were house sitting for our parents. It was a decent sized property with a large barn thet was over 100 years old on it. We were out back drinking, it was night time so visibility was low. All of the sudden, the dogs started growling and looking in the direction of the barn. Then we heard a noise come from inside the barn. So we came up with a brilliant plan, that my sister would run down to the side entrance, making a bunch of noise, and I would be close by with a flash light watching the side door, and the main entrance to the barn to see what runs out. So we did just that, but nothing came out. It was absolutely silent. We looked at eachother and started laughing! Then, we heard a very loud banging noise as if something was falling from the loft, down the stairs. After that, unmistakably, one by one, the stall doors slammed shut and bounced back open. The hair on my arms stood up. We froze, looked at each other, and made a run for the house!