I was surprised Prudie didn't pull out the "no one owns a name" that he uses when he has tried to settle letters from people who feel they have been wronged that their friend/neighbor/sibling named their child the name they were saving (or had used) for their own child. But I agree, this adult needs to learn to manage their anger and perhaps he thought reminding them that no one owns a name would be the thing to set them off further.