when a guy in his class looks at him funny, diego punches him in the face, and ends up on probation. at frist he wants nothing to do with his probation officer. but as diego starts to open up, he begins to realize that mr.vidas is the frist person in his life who ever really wanted to listen to him. with vidas's help, diego begins to make real progess in controlling his anger. he even popens up enough to tell vidas about the shark tooth that he uses to cut himself. but only if diego can find the courage to turst vidas with the darkest secrets secrets from his past will he be able to heal completely