Place it as the payoff at the end of a short edit, after the promise to quit has been shown, and follow it with the fail sound for a second beat before cutting away. For a bigger build-up, open with the moment of realisation, then let this clip close the scene.
À propos de ce son
This 2.5-second clip delivers the Portuguese line 'Eu largo largar esta merda' in the deep, weary voice associated with Batman's Brazilian dub by Márcio Seixas. It sounds like a frustrated declaration of giving up on quitting something, blunt and exhausted rather than angry. The weary delivery makes it funny for moments of defeat, sarcasm, or pretending to walk away from a bad habit, a game, or a chore.