The practical joker despises his victims, but at the same time he envies them because their desires, however childish and mistaken, are real to them, whereas he has no desire which he can call his own. His goal, to make game of others, makes his existence absolutely dependent upon theirs; when he is alone, he is a nullity. Iago’s self-description, I am not what I am, is correct and the negation of the Divine I am that I am. If the word motive is given its normal meaning of a positive purpose of the self like sex, money, glory, etc., then the practical joker is without motive. Yet the professional practical joker is certainly driven, like a gambler, to his activity, but the drive is negative, a fear of lacking concrete self, of being nobody.

Author: W.H. Auden