In Richard Adams' "The Plague Dogs," a man faces disgrace and is cast away. In his moment of need, he seeks companions among animals, allowing them the choice to join him on his journey. Surprisingly, only a dog and a cat choose to accompany him, setting the stage for an enduring rivalry. This decision marks the beginning of a complex relationship between the two animals, each vying for the man's affection and attention.

This dynamic highlights a broader theme of loyalty and competition. The cat and dog’s jealousy stems from their desire to be the man's favorite, illustrating how relationships can be influenced by rivalry. As a result, every man shows a preference between the two, ensuring that this struggle for favor continues throughout their lives. The story encapsulates the idea that choice and companionship can lead to both bonds and conflicts among friends.