I remember reading an amusing story about a jeweler in a small town who noticed a man stopping each morning in front of his jewelry store, pulling a large gold watch out of his pocket, and setting it to the time of the large clock in the store window. He did this every day, month after month, year after year.
One morning, as the jeweler was sweeping the sidewalk in front of his store, the man in overalls stopped to set his watch. On impulse, the jeweler spoke to the man. He said: “I’ve noticed you setting your watch by my big clock every morning for years. What do you do at the factory?”
The man finished winding his watch, replaced it in his pocket, and replied: I’m the timekeeper. Every day at noon, my job is to blow the big whistle which tells everyone in town that it’s noon and time to quit for lunch.
The jeweler hesitated for a moment, and then he said: “That’s odd, I’ve been setting that big clock in the window every day, for all these years, by the noon whistle at the factory.”
This Is Earl Nightingale, Earl Nightingale, page 28