The Man That Corrupted Hadleyburg, by Mark Twain. Part II.

The town of Hadleyburg had the reputation of being the most honest town in a wide area, indeed an incorruptible community. The elders took this reputation so to heart that they brought up their children shielded from all temptation and trained thoroughly in total honesty. 

However, a stranger passing through the community was seriously offended by the actions of residents of this Utopia, and he vowed to gain revenge. After several years he came up with the perfect plan to embarrass the town and expose its hypocrisy.