Place it as the punchline after the impossible plan has been shown, then follow it with No No Wait Wait to underline the refusal. For a bigger sequence, put Oh My God Wow after that, so each response answers the plan in turn.
關於此聲音
This five-second Portuguese voice clip asks how anyone could enter the Moon when it is round and has no door. The simple, impossible question makes it feel bemused and gently teasing, like pointing out a plan that cannot work. It works as a light reaction rather than a sharp one.