Let me tell you a story: Once upon a time, there lived a plumber and a mechanic. They were neighbors. The plumber fixed clogged sinks. He sat and waited for customers to call, complaining of clogged sinks. And they do. One by one they knock on his door, each sounding more frantic than the other. “Help! There’s water overflowing everywhere!” cries one customer. “Mr. Plumber, you must come immediately, or else it will be too late.” Wails another. There’s panic in their voices, warbling with utmost urgency. These days the plumber’s business is really good.