Put it at the end of a setup clip, after the unpaid-work claim has been fully stated, so it works as the closing reply. Open with No No Wait Wait to flag the claim, then follow this clip with Damn to let the room react to the call-out.
關於此聲音
This is a brief spoken reaction lasting about one second, with a voice delivering the line 'Yeah, that's called slavery' as a direct reply. It lands as dry, pointed humour, turning a casual description of unpaid or unfair work into an awkward correction that makes the listener pause and laugh at the bluntness of the comeback.