Anyone with half a brain cell knows that he is a pathological liar. And even worse than being a pathological liar, he's a pathological "truth bender". At no point is he lying, and at no point is he ever telling the truth. This gives him a method to worm his way out of any verbal snafu he found himself in. He learned it by emulating his sociopathic father, and he taught his children the same trick.