We have a clock that hangs on a nail on a wall of our bathroom. While my wife and I were talking in the kitchen, the clock suddenly flew off the wall and smashed to the floor. The glass broke in a beautiful “V”, the first letter of our daughter’s name. The battery fell out and disappeared; we could not find it anywhere. The nail was still firmly fixed in the wall. After I cleaned things up and put a new battery in the clock, I checked the time to set it right since it had been without power for several minutes. It was already set at exactly the right time. Happy Thanksgiving!