I am talking on the phone on the opposite side of the house from my bedroom. My husband rushes in and asks me if I just heard a loud boom from the attic! No, I told him, all is quiet over here. He checks the attic out and found that several items we have stored (and very tightly packed, I might add) came loose and fell out on the attic floor. He said that items must have shifted and that is what caused it. I really don't think that is what it was. We haven't been in the attic for the past 3 weeks. And he is retired Marine Corps, so when he packs something in, it doesn't shift. I don't think he believed that the items fell all on their own!