I’ve had many occasions over the years to think about that story. When the driver took back the $100, what should he have given in its place? What was the minimum to ensure Sean stayed on the high road the next time around? Every time I’ve considered it, $20 has always seemed right.

Only now do I realize the question is irrelevant. Only now do I know why Sean smiled. He wouldn’t even have minded getting stiffed. Sean had already made up his mind when he started running. His character wasn’t for sale.

The more I think about it, that’s the best tip I’ve ever received. Thanks, Sean.