My mother tried setting up her friends daughter with a guy.
Her mother called back all offended after finding out that the guy is a carrier while her daughter is not.
My mother insisted that they go ahead with it anyway since it’s only an issue if both of them are carriers.
Her mother took offence at the suggestion and said it’s not up for discussion.
Later she realized that while she was thinking Dor Yeshorim the girls mother was talking about the Eruv.