NFC tags are small programmable stickers that can make a phone play audio, open a link or run an action when tapped, and prank creators have used them to hide surprise sounds in everyday places. This clip was shared as a Spanish-language joke for writing onto such a tag, so the humour comes from the unsuspecting tap rather than a viral video or a film scene. Similar tag pranks circulate on social media and messaging apps, where creators film the moment someone scans a sticker on a case, card or poster and reacts to the unexpected sound.