I had a really boring day at work today, so I plotted a devious practical joke on a (very) sleepy colleague of mine.

While he was out from the office I found a small radio (with no noise on empty frequencies) and syncronized frequencies with my N900, then I hid it in the corner of his office, turned the volume to max and found a nice spot outside the office where I could place the N900.

I then waited for the sleepy guy to come back, when he did and had gotten back to his work I put this fine tune on and watched all the people start complaining about the noise, and the frustration of the sleepy guy who tried to get rid of it :P

The result:
He certainly woke up and the guy tried to turn off the sound on the computer, even almost turned the computer off before he saw where the noise came from.

I just wish I could see his reaction
(Oh how I love my phone^^)