It didn’t take me long to make up my mind that these liars warn’t no kings nor dukes at all, but just low-down humbugs and frauds. But I never said nothing, never let on; kept it to myself; it’s the best way; then you don’t have no quarrels, and don’t get into no trouble.
– Mark Twain
The Adventures of Huckleberry Finn, Chapter 19. Huck finds out that the men he has helped, are liars. One claimed to be the Duke of Bridgewater and the other the late Dauphin, King of France. In reality they are not royalty but malicious and conniving con men.