Smoke detectors have used loud intermittent beeps as a fire and low battery warning for decades, and that familiar pattern moved naturally into online videos and soundboards. Editors borrow the recording because audiences recognise it instantly without any visual context, making it a shortcut for danger, mistakes in the kitchen, or an annoying household fault. It remains popular in pranks, memes and short form edits where a sudden alarm can create panic, break tension with humour, or signal that a situation has gone badly wrong.