Truly evil. It makes my head hurt. Did I say that that is truly evil?

Unfortunately, I don't have 6 or 7 free hours to figure it out for myself. Would you be willing to explain how it works to the slow among us? Or do you have a link that does?

Update: I just occurred to me that the perfect name for this 'operator' is the "Scanners operator", in reference to the movie Scanners, especially for the infamous head exploding scene--WARNING!!! that link leads to a clip of the gruesome and truly infamous scene.