Place this clip right after the mistake is revealed, then follow it with a shocked sound as faces react, and add a smoke detector beep earlier in the same indoor scene to build toward the evacuation moment.
About this sound
This 14-second clip pairs a repeating piercing alarm tone with a public-address voice urging everyone to leave the building. It feels urgent and panicky, turning even a minor problem into instant chaos for the listener. It comes from generic school and office evacuation systems rather than a specific film or character.