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I've seen her dehydrated sir, its pretty gross.
— Andrew • The Breakfast Club

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker claims to have seen someone in a dehydrated state, then describes it with blunt disgust. Addressing the listener as 'sir' gives this casual remark a small note of formality. The contrast makes an unpleasant observation sound oddly like an everyday report being offered.
Context reviewed