Place it at the end of a scene, just as the unwanted visitor leaves the frame. Set it up with It Was At This Moment He Knew, then follow the dismissal with Bruh Meme for the deadpan reaction from everyone left behind.
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This is a two-second spoken French line, 'Dehors les romanos,' urging the Romans to leave. The clipped delivery gives it a brisk, comic sense of defiance, like a door being shut on an unwelcome visitor. It works as a quick, pointed reaction, turning a small moment of rejection into something theatrical and easy to repeat.