Her next appearance by Barks in "Biceps Blues" (June 1946) introduced a key concept to their relationship. When Daisy seems impressed by a certain type of male, Donald is forced to emulate that type, no matter how unsuited Donald is for emulating it successfully. In this early case, Daisy envies her "old school chum" Susy Swan for dating a notable weightlifter. Donald at first protests that she seems too impressed by a "gorilla" just because the "muscle-bound buffalo" can lift 300 pounds. But when Daisy simply ignores him and daydreams about dating Hercules, Donald decides to start weightlifting. The rest of the story focuses on his ineptitude at exercising and the eventual efforts of Huey, Dewey, and Louie to cheer him up by various tricks pointing to Donald becoming stronger. But when Donald arranges a demonstration for Daisy, Susy, and her boyfriend, their tricks are not able to save him from ridicule. Daisy then chases Donald in anger (Donald, in turn, chases Huey, Dewey, and Louie in anger) while Susy boasts about her luck in men to her weightlifter boyfriend, who simply grunts and nods and fails to understand her words. Daisy failed to see that Susy's boyfriend is strong but otherwise not too gifted, whereas Donald is one who would go great lengths for her.