Philosophers and psychologists have created a large body of literature relating to the emotional experience of “enjoyment”, but definitions of enjoyment vary (e.g., [19], [73], [81] and [96]). Psychologists consider that “enjoyment” is an entirely different emotional experience from a joyful feeling, which is “effected by the satisfaction of natural impulses or needs” [2, p.56], for example, the joy of satisfying physical or psychic needs. When people ponder what makes their lives rewarding, they tend to move beyond pleasant memories and remember events and experiences that overlap with pleasurable ones, but fall into a category that deserves a separate name: enjoyment [19]. Enjoyable events occur when a person has not only met some prior expectation or satisfied a need or a desire, but also has gone beyond what they have been programmed to do and achieved something unexpected, perhaps something previously unimagined.