Put it right after the mistake is shown, following the Wrong Answer Game Show sound for the failed guess, then let Nelson's Ha-Ha follow it to keep the sequence going before cutting to the next scene.
关于此声音
This ten-second clip catches a voice saying oh no no before dissolving into a long, helpless laugh, with panic and amusement running together in the same breath. It feels awkward, gleeful and a little mean, like watching a disaster unfold while knowing nobody is hurt. The laugh does most of the work, turning a worried reaction into a joke you can replay whenever something goes wrong.