An episode where the cast conspires to find out what one of them (usually, The Stoic) fears the most, setting up various scares. They often fail but the audience does learn the answer, greatly humanizing The Stoic in their eyes. Related to Why Did It Have to Be Snakes?. Compare Your Worst Nightmare. May be part of Hiccup Hijinks. See also I Know What You Fear, Face Your Fears. Examples of "What Do They Fear?" Episode include: