In this passage, Rawls demonstrates the effect of Grandpa’s pride on behalf of Billy and his dogs. While Billy is eager to defend his dogs against anyone who questions their abilities, he is much more soft-spoken. Grandpa, however, is so proud of Billy, Dan, and Ann that he’s determined not to let a single slight get past him. Grandpa’s involvement in this moment will have terrible consequences for all three boys—but right now, all Grandpa is focused on is helping Billy prove himself.