" the indestructibility of the army pack mule. Falling from a height of thirty feet, one of these creatures—watched in amazement by a regiment of troopers whose colonel recorded the incident in his memoirs—“turned a somersault, struck an abutment, disappeared under water, came up, and swam ashore without disturbing his pack. "

― Shelby Foote , The Civil War, Vol. 3: Red River to Appomattox