Place this clip right after the rude action in your timeline, then follow it with a clapping sound button if the person fixes their behavior. For a failed attempt, put a fail sound meme before it so the correction becomes the closing beat.
About this sound
A seven-second spoken line in Spanish, 'Los modales forman al hombre,' delivered in a calm, polished voice. It feels classy and pointed, like a polite correction that still lands as a warning. The clip comes from Kingsman, where the phrase is used as a lesson in manners.