Place it at the end of a setup, after a reveal, then follow it with a Dun Dun Dun sting to underline the twist or a SpongeBob Fail clip when the scheme backfires.
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The clip is a brief 1.8-second burst of deep, theatrical evil laughter, delivered like a cartoon villain savouring a wicked plan. Its exaggerated, menacing tone feels mischievous rather than frightening, turning a simple cackle into an instant cue for scheming, gloating and over-the-top mischief.