Seen over at the Daily WTF, this gem,

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K.G. tried to reason with him, kidding-on-the-square with an example a doctor might understand: “Granted, I don’t have any formal medical training, but I’ve been hanging out with doctors for years, watched several seasons of E.R., and even stayed in the hospital for a few nights. Surely, I could just grab a scalpel and do a quick tonsillectomy?”
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The “Surely, I could just grab a scalpel and do a quick tonsillectomy?” comment cracked me up.