In "The Mark of Athena," Percy Jackson uses humor and wit in a tense situation with dolphin warriors. He brandishes a can of Diet Coke, treating it like a powerful weapon. By proclaiming it to be the god's chosen beverage, he tries to intimidate his adversaries, showcasing his characteristic bravado.

The dolphin-men are struck with fear at the sight of the soda, making them reconsider their stance. Percy's confidence in his unconventional approach suggests that even mundane items can become sources of power when wielded with creativity and conviction, turning the tide in his favor during the encounter.