How does the husband in the conversation reassure his wife about Jack Burns?

The husband reassures his wife about Jack Burns by drawing a comparison to a family member, which serves to create a sense of familiarity and trust. This approach can effectively alleviate concerns as it implies a similarity in character or reliability based on the positive attributes of the family member. Such a comparison can help the wife feel more comfortable and secure in her assessment of Jack Burns, as it suggests that he possesses qualities that are valued and understood within their family context. This method of reassurance is relatable and emotionally significant, as familial ties often carry weight in forming judgments about character and trustworthiness.