Hunnicutt counsels Zelmo Zale who has received a letter from his wife, confessing to an affair.
(The episode gets its title from the racial slur "Moose" sometimes applied to Korean mistresses.)
Hunnicutt tells Zale to sign the letter to his wife with his "John Hancock, or Syngman Rhee if you prefer."
Syngman Rhee was the president of South Korea at the time of the Korean War.
Hunnicutt references when the soldier finds the kimchi pot is The Good Earth.