Coffee cup holder
Beware, though, chaps and chappesses - when you reboot the computer, it sneakily dives inside the case, leaving the coffee cup with no visible means of support. This is of course against the law (in this instance, Gravity), and the cup plummets downwards, invariably on a slant with the mouth towards you. Its progress is impeded by the shelf / desk / 200 year old oak table (delete whichever is inapplicable) upon which your equipment rests. This restriction of motion is not, however, shared by the liquid contained therin, which continues merrily upon its way, with the addition of a forward component added by the tilt of the original container, plus various swirling effects occasioned by the contours of the cup. The hot liquid thus released propels itself away from the computer, and thus towards any person or object in its path, with hilarious results. In short, the coffee spills in your lap. You Have Been Warned.
Tony