But numbers were not the only measure of a fortress' fate. Salim had an odd assortment of weapons that feasted on assumptions. On the eastern parapet, old engineers had converted a stable of broken tools into a ragged catapult of their own. It lacked the clean geometry of a Crusader trebuchet, but in the chaos of stone and smoke it made up for elegance with surprise. Its payload shattered a supply cart and sent a cloud of millet and sand into the air; for a moment the Crusaders choked on the unexpected. Humiliation is a weapon.