After his prom, he is bashed by a fellow student, Chris Hobbs, resulting in a two-week coma, and brain damage that limits the use of his hand. This event impacts his life immensely and the effects are seen throughout the series.
After his prom, he is physically harmed by Chris Hobbs, leading to a prolonged period of unconsciousness and brain damage that affects his ability to use his hands. The repercussions of this incident are evident in the entire narrative.