I've worked it out.

The keyboards are so sticky because they suck their fingers.

I knew it couldnt be down to sugar consumption at break times, because they'd keep a lot on their fingers, and nobody's fingers could be that bad.

No, they sit here and suck their fingers, and then wipe them over the keyboard, mouse and monitor repeatedly while searching for the 'b' key.

How lovely.

Anyway, looks like that's it for today. Time to go home. Good good. Hasn't been a bad day either :)