Place this clip right at the reveal in your edit, preceded by the sudden suspense sound button to build the fake tension, then follow it with Nelson's Ha-Ha! sound button if the plan immediately backfires on screen.
關於此聲音
This clip is a one-second evil laugh delivered softly rather than as a full villain cackle, with a gentle, almost benevolent tone to the chuckle. It feels playfully mischievous and lightly smug, more like teasing scheming than real menace, which makes the laugh land as funny and harmless instead of threatening or scary.