Love the Filthy PCs Series...
...and hope to see more installments as time goes on! (That "mice in the power supply" picture from the first set has yet to be topped, though.)
In my freelance computer consulting adventures, I came to know a guy who was, shall we say, a "bit" of a smoker. Everything in his apartment had that yellow tinge. It was so bad that there were outlines left around pictures and other things and everything in there had some degree of yellow/brown color to it.
After fixing his computer one day, he told me there was another, broken PC in the closet and asked if I'd take a look at it. Like everything else, it was that filthy yellow color. I took it home in the back of my truck because it stunk so horribly. And then I tore it apart in the driveway, working in a haphazard fashion. As much residue as there was in the thing, I didn't expect it could possibly function. It was certainly filthier than anything I'd ever dealt with before, so much so that I could not even see the components--only their outlines. I really thought I'd just bin it.
It lived, though. I threw the whole darn disassembled thing in the dishwasher and ran it through two whole heavy washing cycles. The water that came out of the machine was a filmy brown color. Even though the pieces still had a very faint aroma of cigarette smoke, they were at least the right color again. I set them in the sun for a few days, put the whole lot back together and it powered right up after installing a new clock battery. Turned out all it really needed was a fresh installation of Windows.
I worry more about what the owners of the apartment will do if/when he moves out.