The character in "The Lightning Thief" by Rick Riordan has a lifelong excuse from physical education due to a muscular disease affecting his legs. Despite his condition, which causes him to walk awkwardly and seem in pain, he surprises everyone with his unexpected physical prowess.
On days when enchiladas are served in the cafeteria, he demonstrates his remarkable speed, contradicting the limitations implied by his struggles. This contrast highlights the resilience and inner strength of the character, showing that appearances can be deceiving.