The Most Annoying Sound in the Universe

I think most would agree that the most annoying sound in the universe is the sound of your alarm clock going off in the morning.

So, when I saw this over on Barry Moltz's blog and thought how annoying could an alarm clock be that launches a rotor in the air and keeps buzzing until you find the rotor and return it to the base?

Probably not that annoying if you had one of these under your bed as a snooze button.

Just a thought.