Re: Building dust
I had plenty of Engineer's laptops that died of inhaling tiny little bits of swarf from the CNC Lathes and Milling Machines that they were working on. And one that fell into the coolant when the machine vibrated a bit too much and yet bizarrely survived (once dried out).
Before the smoking ban, there was one Engineer whose laptop you could smell a mile off due to the tobacco stink. Fuel station gloves were used to install remote control software onto the machine (no-one wanted to touch that keyboard) and it was put in a remote storecupboard whilst it was updated).