A few months back there was a big wind storm. When I came back from work, the cover of my barbecue had wandered off. I looked around the neighborhood, but there was no sign of it.
Today, it was also windy. When I came back from work, sitting on my balcony, in a crumpled heap, is my barbecue cover. I almost expected it to have stickers on it from all the places it had toured. I have no idea where it came from. The wind was from the south which would imply that it had blown up four stories from the vacant lot across the street. My best explanation: the cover had gone onto the roof of the building and had now blown off.