" The result of pretending to be a more amiable, a more forgiving, a more high-minded person than one really is, has sooner or later the effect of causing one to behave as a more disagreeable, a more ruthless and an altogether more unpleasant person than is actually the case! If you dam the stream of natural behaviour, mon ami, sooner or later the dam bursts and a cataclysm occurs! "

― Agatha Christie , Hercule Poirot's Christmas (Hercule Poirot, #18)