During battle in WW2, my father saw a soldier literally cut in two by some sort of enemy gunfire. Dad said the guy's lower torso and legs continued to run a short distance after the top was gone. (perhaps several steps) Also, my father and his brothers used to catch snapping turtles for food back during the Great Depression. They would chop the turtles' heads off and throw them to the chickens. One chicken was killed by a turtle head still snapping after being beheaded.