Old Sea Captain
An old sea captain is sailing the seas when the crows nest calls down
"Captain, enemy ship dead ahead!" The captain says to his new first mate
"Boy fetch me red shirt" With his red shirt on they sail into battle victoreously.
The first mate asks "Captain, why the red shirt?"
Captain says, "Boy if I'm wounded in battle, the men won't see blood and they will fight on courageously.
Next day, crows nest calls down, "Captain twelve enemy ships on the horizon!" Captain says, "Boy fetch me brown trousers!"