In the book "Shopgirl" by Steve Martin, a character seeks revenge on another through manipulative tactics. However, her efforts prove futile because her target remains indifferent to her attempts. This highlights her frustration and the futility of her actions, as she confronts someone who is emotionally detached and unaffected by her schemes.

This scenario illustrates the theme of unrequited emotions and the difficulties of communication in relationships. It underlines how someone's emotional resilience can thwart others' attempts at manipulation, emphasizing the complexities of human interaction and the challenges faced when trying to exert control over another person.