The nurse recorded the time of death, 9:21 P.M. He discovered, oddly, that the clock had halted at that moment —just the sort of mystical phenomenon that appealed to unscientific people. Then an explanation occurred to him. He knew the clock was fragile, because he had repaired it several times, and he decided that the nurse must have stopped it by picking it up to check the time in the dim light.

[ James Gleick - Genius - The work and Life of Richard Feynman; this is a really chilling passage, which describes the moments just after Feynman's wife has passed away, which devastated him. Somehow, this struck me.]