Place it at the end of a favour scene, right after the helping action finishes and before the reaction shot. Follow it with a short laugh sound for a friendlier cut, or precede it with a surprised gasp when the ingratitude needs extra emphasis in the edit.
حول هذا الصوت
A short two-second voice clip of someone asking “merci qui?” in French, delivered like a pointed little reminder. It feels cheeky and mildly scolding, the kind of gratitude check that lands as funny rather than rude, turning a forgotten thank-you into a tiny, teasing call-out your audience instantly understands.