Scene: a 13th-cen­tu­ry feu­dal upris­ing. Rebels are besieg­ing the cas­tle. They man­age to kill the eldest son of the Duke by knock­ing him off the ram­parts with a lucky tre­buchet vol­ley, using as a pay­load the sev­ered head of a peas­ant. It was the first serf-face-to-heir mis­sile. (h/t John Garison)