" You know the best example of sincerity? The absolute gold standard? Who? Angus pointed to the door, outside which Cyril was waiting patiently. A dog. Have you ever met an insincere dog - a dog who hides his true feelings? Domenica looked thoughtful. And cats? Dreadfully insincere, said Angus. Psychopaths- every one of them. Show me a cat, Domenica, and I'll show you a psychopath. Textbook examples. "