Place it right after the unwanted take lands, let it carry the reply, then cut to a Huh sound for the other person's reaction and finish with a No No Wait Wait sound as they try to backtrack.
About this sound
This clip is a 38-second stretch of a voice repeating 'lalalala' in a steady, singalong chant, with no other words breaking it up. It feels playful and deliberately oblivious, like putting your fingers in your ears to block out nagging, spoilers or an argument you refuse to hear.