Place it right after the mistake appears on screen, as the response beat in your edit. Start with the windows xp error sound to mark the slip, follow with this clip, then cut straight to the culprit's reaction shot for the payoff.
Über diesen Sound
This is a one-second German voice line that snaps out 'Das macht man doch nicht,' the blunt scolding for 'you just don't do that.' It lands as mock-outraged and disapproving, turning a minor rule break into a funny overreaction. The clip is credited to New Kids.