 None of them had any feature story or writing credits to their name besides Ranft, who had taught a story class at CalArts and done some storyboard work.Seeking insight, Lasseter and Docter attended a three-day seminar in Los Angeles given by McKee.His principles, grounded in Aristotle's "Poetics", dictated that a character emerges most realistically and compellingly from the choices that the protagonist makes in reaction to his problems.