In Larry McMurtry's novel "Lonesome Dove," the character Gus makes a lighthearted remark to his companion about the subject of death, suggesting that such discussions are not polite or proper. His comment reflects a blend of humor and the complex dynamics of friendship, where serious topics can be approached with levity.

This exchange reveals the characters' coping mechanisms in the face of life's inevitable realities, illustrating how humor can serve as a defense against the uncomfortable nature of death. Gus's playful language provides insight into his personality and the way he navigates deep, often somber conversations with his friends.