In a barely related note, it always made me laugh that the Japanese once had a trend where they would broadcast toilet-flushing noises on continous loop in their bathrooms. It masked any embarrasing noises emitting from the toilet stalls.
Here's the opposite, from our own archives: Robodump!
http://freerepublic.com/focus/f-chat/1278830/posts
The day I can listen to that MP3 start to finish without LAMO, start brewing me a big cup of hemlock tea.