Nathan thought for a minute, and then he took another credit card from his pocket. He smiled and showed it to Crystal, but she scowled and said, “Big deal!” The card was more impressive than her mother’s, but she refused to be impressed. “So what?”

“This is my salary card,” Nathan explained.

“From now on, it’s yours.”

Crystal smiled wryly and said, “You’re not afraid that I’ll take your money and run?”

Nathan, “Try it if you want. If you succeed, then there’s ...