Klaxon horns have long been used at fairs, harbours and sporting events as a clear departure signal because the harsh two-tone blast carries over crowd noise. As a short isolated clip online, this version became a reusable cue for starts and send-offs, shared on soundboards for quick playback in videos and streams. Its French depart label and funfair context give it a distinct ride-operator feel compared with a normal car horn, which is why creators reach for it when they want a playful but unmistakable starting signal.