The exact source of this two-second clip is undocumented — it circulates as a user-uploaded meme sound rather than a known film, show or song line. Its power comes from the phrase itself: 'puede ser fatal' is a familiar formal warning in Spanish, the kind heard in safety announcements and news reports, so it instantly reads as a genuine alert. Spanish-speaking creators pair it with risky stunts, near misses and pranks in short-video edits and group chats, and its deadpan tone has kept it in rotation as a quick, reusable danger sting.