At the start of a Player Turn, each of the Active Player’s unengaged nonfleeing units with one or more models (or a part of them) with this special rule must take a Leadership Test. If the test is failed, the unit must move D6” directly forward (stopping 1” before Impassible Terrain or other units) in the Compulsory Moves subphase and may not perform any other voluntary actions this Player Turn (such as charging, moving, shooting, casting spells and so on). If the model has no front (i.e. the model is on a round base), randomize which direction to move in. All models with the Stupidity special rule are also Immune to Psychology.