Place it at the very end of a scene, after the last line of dialogue, then follow the exit with the Discord disconnect sound if the joke is someone leaving a call. For a longer farewell sequence, put a door or footsteps effect before it so the departure reads in order.
關於此聲音
A short 1.2-second voice clip of someone saying 'au revoir', the French phrase for goodbye, delivered as a quick farewell line. It feels polite but playful, like a light exit rather than a serious parting, which makes the goodbye land as funny and a little dramatic instead of sad or final for the listener hearing it leave the conversation.