I was in an antique shop in Florida. I was in a recently added warehouse section, metal roof. There was nobody else there and it was raining and you could hear the rain on the roof. They had a ac unit that used fabric ducts hung on the celing that could inflate when it liked on. I had my back to the thing, and it kicked on. It scared me to the point where I locked up. Then I was like oh, just the ac. Then those bags inflated, and then I really locked up. I couldn't move, me pulse went mad and I almost fell over.