In "Sushi for Beginners" by Marian Keyes, the narrative presents a humorous perspective on judgments and contradictions. The quote "That's like the dog calling the cat's arse hairy!" illustrates the absurdity of one party criticizing another for a flaw they also possess, highlighting how hypocritical observations can be. This phrase captures the essence of rivalry and the playful banter often found in relationships.

The book explores themes of friendship, personal growth, and the complexities of life through witty dialogue and relatable situations. Keyes uses such comedic remarks to engage readers, making light of serious issues while also addressing underlying truths about human behavior and perceptions.