“Waiter, what is the greatest commandment in the Restaurant?”
The Server replied: “Love the One who serves with all your heart, your soul, and 20% of the check, minimum. That is the first and greatest commandment. And the second is: Leaving 20% of the check does not give you permission to act like an asshole. All other aspects of your future service hand on these two commandments.”
“I’m not sure the second is technically a commandment. It’s not really an imperative, you know?”
“Don’t be an asshole.”