The appeal is obvious—aside from wishing we were genius billionaire philanthropists—there are times when we wish we could take matters into our own hands; to be a lone gun-slinger, dispensing our own brand of justice or seeking retribution. Alas, until “civilization” slides a little farther into the abyss, or we have nothing left to lose, we must settle for watching others wreak vengeance in film and video games; living vicariously through them. But oh how we wish sometimes. . .