One time DH and I were flying from STL to LAX via Salt Lake City. There was a group of passengers that had been heading to Omaha the night before when their plan had to land because of mechanical trouble. So they put them on our flight and we made an extra stop in Omaha to let them off. This meant we missed our connecting flight in Salt Lake City, but they put us in first class on a later flight. All seemed fine until we got to LAX and realized our luggage got off in Omaha. They finally got it to us around 10 or 11 o'clock that night.