By way of Pharyngula, we have this quote from The Sideshow:
Any sufficiently advanced incompetence is indistinguishable from malice.
(A combination of two famous sci-fi quotes: “Any sufficiently advanced technology is indistinguishable from magic,” from Arthur C. Clarke and Hanlon’s Razor: “Never ascribe to malice what can best be attributed to incompetence,” which has been credited to Napoleon and Robert Hanlon.)