Saboteur's Friend

The euphemistically named saboteur's friend looks, smells, and tastes like an appetizing chocolate square. You lace the chocolate with reagents that induce a strong laxative effect. Saboteur's friend is useful for incapacitating rather than dealing lasting harm. Unlike some poisons, saboteur's friend can have its sickened condition reduced (but changing to a higher or lower stage after a save applies any sickened condition listed for that stage, as normal).