Back in the 1800s there was a wooden sailing ship. One day, the guy in the crow’s nest says, “Captain! There’s an enemy ship ahead!”
The captain says, “Bring me my red shirt.”
So the captain’s assistant runs off, grabs his red shirt and brings it back to the captain. He puts it on, and battle begins. The cannons roar, the crew swings over on the boarding lines, and they start fighting hand to hand.
The battle is over in minutes, and not a single sailor is lost. About 15 minutes later, the assistant pops up to the captain and asks him why he wanted a red shirt.
The captain says, “If I had been shot, and was bleeding, the crew would not notice the blood, and continue to fight.” The assistant nods and makes a mental note to remember that someday.
The next day, the guy up in the crow’s nest screams, “Captain! Twenty enemy ships approaching fast!” The captain says, “Bring me my brown pants!”