A pastor preached a sermon on honesty one Sunday. On Monday morning he took the bus to get to his office. He paid the fare, and the bus driver gave him back too much change. During the rest of the journey, the pastor was rationalizing how God had provided him with some extra money he needed for the week. But he just could not live with himself, and before he got off the bus he said to the driver, “You have made a mistake. You’ve given me too much change.” And he proceeded to give him back the extra money. The driver smiled and said, “There was no mistake. I was at your church yesterday and heard you preach on honesty. So I decided to put you to a test this morning.”