The clip comes from Llamas with Hats, the dark comedy web series created by FilmCow and first released online in 2009. In the series, Carl repeatedly commits shocking acts while wearing a hat, and Paul reacts as the increasingly exhausted voice of reason. Their exchanges spread through YouTube reuploads, quote posts and soundboards, with this line becoming one of the most quoted moments. It survives because the wording is instantly recognisable and works as a reaction even for viewers who have never watched the original cartoon.
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Paul telling Carl that kills people from Llamas with Hats, used as a deadpan reaction to dangerous, violent or wildly irresponsible ideas in meme edits.
This is Paul the llama reacting in horror as his friend Carl casually explains another murder, delivering the line Carl, that kills people with flat disbelief. The delivery is calm, polite and completely mismatched to the violence being described, which is what makes it so funny. Carl answers in his usual cheerful, unbothered tone, treating mass harm like a minor hobby. The contrast between Paul's stunned correction and Carl's innocent enthusiasm turns a dark moment into an absurd exchange that lands instantly even without seeing the cartoon.
