Percy Jackson reflects on his unfortunate experiences during field trips, particularly recalling a mishap that occurred during a visit to the Saratoga battlefield in fifth grade. His unintended encounter with a Revolutionary War cannon resulted in an accident that caused him considerable trouble, ultimately leading to his expulsion from school.

This anecdote showcases Percy's knack for finding himself in chaotic situations, often with humorous yet serious consequences. His misadventure with the cannon not only highlights his bad luck but also sets the tone for the unpredictable and adventurous narrative of "The Lightning Thief." As the story unfolds, it becomes evident that Percy is accustomed to challenges and unexpected events in his life.