Place this clip at the end of a short fail sequence, after the mistake itself, so it acts as the verdict. Start with a Fail Sound Meme moment for the mishap, then bring in Kann Es Sein Dass Du Dumm Bist only if you want a second, sharper reaction afterwards.
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A German-speaking man delivers the line 'Er hat auch nicht mehr Grips, als ein Spatz Fleisch an der Kniescheibe' in about seven seconds, comparing someone's brains to the meat on a sparrow's kneecap. It feels bluntly mocking and dryly funny, like an old-school put-down aimed at a daft idea. The clip comes from the film Wie Pech und Schwefel.