Our initial reaction is that Smith's deliberate silence is shocking—he must be guilty. He's not—if we reframe the story that the reason Smith doesn't like Jones is because Jones is a murderer who likes to kill for pleasure. Then, Smith begins to look more like a hero than a villain. Of course, if it is Smith who is the murderer and Jones the saint trying to stop him, it all looks very different again. The point from the story is that we must have real, not circumstantial, evidence to judge someone, and why we must be extremely careful not to imagine motivations. 