Place it right after the accusation in your edit, as the reply that closes the exchange, then cut to Nelson's Ha-Ha for a final mocking beat. Keep the accuser's line short before it, so the comeback stays the focus and the laugh lands after.
À propos de ce son
This is a short Portuguese voice clip of about four and a half seconds, in which a speaker fires back 'Ruim é você' — you're the bad one — at someone who has just criticised them. The delivery is blunt and teasing, turning an insult around with a quick, confident snap. It feels defiant and playful rather than angry, like a light comeback that refuses to accept the blame.