Explanation: The Roman military leader Titus Manlius Torquatus gave an order that his army not engage the enemy until he allowed it. His son, while on patrol, ran into a enemy patrol which taunted him, and for that reason, attacked and slew them. When the son returned to his father, Manlius praised his valor but ordered him to be killed for disobeying orders - an act that horrified everyone around him, despite the Romans being normally quite fond of harsh punishments for violating discipline. Because of this, the term 'Manlian discipline' became known, meaning excessively harsh punishment.