The captain of an eighteenth century sailing vessel with many cannon was alerted by a voice coming from the crows nest, "Pirate vessel off the starboard bow approaching at flank speed!" The captain orders the lieutenant, "Bring me my red shirt." After a brutal battle and an attempted, yet unsuccessful boarding of his vessel, the pirates were defeated. The lieutenant queried his leader, "Captain, before the battle you requested your red shirt, may I ask why?" The captain replied, Yes, it was because if I had been injured the men would not have noticed and would not be disheartened, but continue to fight bravely." The lieutenant said, that's quite brilliant, sir."