I don't know how long this link will be good, but this article http://www.news-leader.com/apps/pbcs.dll/article?AID=/20060814/NEWS01/608140373/1007/NEWS01 tells of a sinkhole in southern Missouri which took a man's garage and car. Now it's getting the house. ("Sinkhole" is certainly a prosaic name for a collapse which rumbles like thunder for 15 minutes.) I was impressed (but not surprised) by the low-key courage of his reaction. He's lost everything he has, but he jokes about his tankful of gas.