What Did That Sound Mean?

There are sounds all around us every single day.  We hear some so often that, in many respects, they don’t even register any longer.  From beeps of a garbage truck backing up, to your chosen notification for a text message, there’s a new game to play when you have something to give out called “What Did That Sounds Mean?”  Play the sound, and the first listener to identify what it meant wins.  Bonus points if the sound you play has something to do with your life, so it builds your on-air character.