You would express it civilly by making your comment be about the subject, not the person you&#x27;re talking to. It&#x27;s fine to say &quot;I don&#x27;t think it&#x27;s right to do X&quot;, and explain why. It&#x27;s not fine to say &quot;Shame on you for X&quot;. That&#x27;s an attempt to punish somebody. Shame is a social truncheon, and in civil discussion we don&#x27;t pull weapons on one another.