To Determine the Motion of a Cat with a Slice of Buttered Toast Strapped to its Back: Let F_c be the attractive forces of each of the cat's feet to the carpeting , and let F_bt be the net rotational torque imposed by the carpeting upon the buttered side of the toast. By the 42nd proposition of Murphy's Laws, the system will begin to rotate in a counterclockwise fashion, causing the cat to experience a large measure of confusion. The partially-melted butter , which is adhered to the toast by comparatively weak Van der Waals forces, is overwhelmed by the large centrifugal fictional force, causing it to splatter all over the place . The spinning cat and toast , having thus divested itself of surplus butter, will then experience tidal drag within the Earth's gravitational field until such time as rotational equilibrium is restored.