Marcus Vega Doesn't Speak Spanish

What kind of bully is Stephen Hobert, and how does he manage to avoid getting into trouble? What causes his behavior?

In what ways does Marcus assume adult responsibilities as a result of his father’s abandonment of the family? Why does he hide some of his activities from his mother?

Mrs. Hobert and Stephen describe Marcus as a bully. Is there evidence that he earns the negative judgments others make of him?