 How, actually, it's a very good question. There are, as you point out, many naughty people. It's a very kind word. How do you delineate between the very naughty and the possessed? Well, the very naughty are usually terribly honest about their naughtiness. A high-class call girl, who is really a prostitute, will tell you honestly, when she lets her hair down, that she is that.