"Generally speaking a tendentious joke calls for three people: in addition to the one who makes the joke, there must be a second who is taken as the object of the hostile or sexual aggressiveness, and a third in whom the joke's aim of producing pleasure is fulfilled."
― Freud, S. (1905) "Jokes and their relation to the unconscious", in S.E. VIII, pp. 1-258. London: The Hogarth Press.