Computer Voodoo (Score 1)

Almost literally. Over the years of assembling computer systems, particularly early on, systems that would work well were ones that I had in some way injured myself in building, usually a skinned knuckle from working in a sharp sheet-metal case. Systems that were assembled with no bodily harm would almost always need a hardware fix fairly soon afterwards. I started calling this my "blood sacrifice." It got to the point that one time, when the hardware assembly had gone smoother than ever before and I was completely unscathed, I actually pricked my finger and touched a drop of blood to the inside of the case.

I've since realized how stupid the whole thing was, but even so, if I skin a knuckle or cut a finger on a case I make a joke about blood sacrifice and breathe a little easier.