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Call me old fashioned but one doesn't have sex with women who are unconscious.
— Graham · The Holiday

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker states a basic moral boundary in a dry, understated way, calling it old-fashioned rather than obvious. That understatement alone makes the line comic, treating an absolute minimum standard as a quaint personal preference. It's a wry way of turning a plain statement into a joke about manners.
Context reviewed