Place this clip at the peak of an experiment montage, just after the invention switches on, then cut to the result. Build up to it with Cartoon Chase Music, and follow a second failed attempt with Woody Woodpecker Laugh to keep the cartoon chaos escalating.
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This four-second clip captures Dexter, the boy genius from Dexter's Laboratory, laughing in short, squeaky bursts full of glee. It feels mischievous and overconfident, like a secret experiment is about to work. The laugh comes from the Hanna-Barbera series that premiered in 1996.