On this particular night, they make a few innocent mistakes precluded by a few bad decisions that escalate into something much bigger than they ever intended or wanted. Boyle describes his persona from a first person narrative, you can feel the type of person he wants to be seen as.
This ends up being a mistake though as the car contains a man out with his girl.
By utilizing the setting of the lake as both a tool for a literary baptism and an object to compare and contrast the narrator to, Boyle emphasizes the corruption of the lake, the narrator and the society of the time. Coraghessan Boyle, the author illustrates the journey towards adulthood for three teenage boys in a time when it was hip to be "bad.
Both are coming-of-age stories that teach some sort of lesson to the protagonist at the end. As they come out of hiding to survey the damage to the car and search for and find the dropped keys, another car pulls up to the lake.