It's what I call this thing that was brought into my shop back when I was working as a technician in a small computer store no longer in business. The individual REEKED of cigarette smoke, and his computer did too. Complained the CD-ROM drive wasn't working anymore. He then went outside and had a smoke. :P

I walked out beside him about three minutes later with the open case and a can of compressed air, and showed him the 1/4 inch of smoke crap on every surface of the inside of his computer. I told him I was surprised the thing was still working, and there was no way in HELL we were going to honor the warranty on that thing. Told him I'd sell him a new CD-ROM drive, and that if he wanted the warranty to be honored for the rest of the components, not to ever bring back the computer in that shape.