In P.G. Wodehouse's "Aunts Aren't Gentlemen," the character reflects on the emotional pain caused by ungrateful family members, comparing it to the sting of a serpent's bite. The saying captures the disappointment and frustration that can arise from having relationships where appreciation is lacking, whether it's a child or an aunt. Wodehouse humorously conveys the complexities of familial bonds through this insightful observation.

The theme illustrates the struggle of dealing with thankless relatives, emphasizing that such dynamics can be equally challenging, regardless of the family role. Wodehouse's wit serves to highlight the absurdities of these relationships, inviting readers to appreciate both the humor and the heartache intertwined in familial interactions.