Auntie Mei has a noodle stall. Every customer gets the same bowl and the same joke.
One night a man in an expensive coat orders the cheapest noodles. Auntie Mei gives him the same bowl and the same joke. He says, "I am a famous critic. What is your secret?" She says, "Hot broth, hungry people, and I do not change." He gives her five stars. Next week, the line is longer. She tells the same joke.