Those of us who work on the internals of various types of computers know that it can be uncomfortable all the way to down right painful. Newer and more expensive cases are very smooth, they have nice surfaces that the skin can slide along. However, older cases, especially those provided by manufacturers often have garish metal extrusions on the interior of drive bays and other cramped spaces. Of course what happens then is you, feverishly working on installing a new whizbang IDE drive, violently slide the old drive that was in the bay out and catch your knuckle on something, causing it to be ripped open and bleed. The computer's thirst is fulfilled, and you finish the installation, but for how long? For how long?!?!