When you forget you have your computer speakers on and one of those audio alerts (from spell checker,you've got mail,Weatherbug, etc) scares the crap out of you. Can also occur when computer is idle but the speakers are on if you have an Aquarium screen saver.(bubbling water)
I was already sitting on a poop knob when I received an audio startle that made me soil myself.
by wolfbait51 May 27, 2011