I was (very evilly) pondering a piece of theological writing that really set me off. The author had set himself up as The Rational Voice telling two other sides exactly what they were doing wrong, and was just painfully oblivious to his own prejudices. He has several times commented on how much other peoples' Jesus happens to agree with them, and how they never seem to notice. Which always sends my irony-meter through the roof (remember, this is my evil musings here, I get to more edifying stuff soon) -- sends my irony-meter through the roof because he is so clearly oblivious to the fact that his Jesus just happens to agree with him in every way. My snarky-comment generator even considered dubbing his collected writings "Mr. So-and-So's Spec Removal Service" (or Mote removal service, for the KJV fans).
Of course self-delusion only lasts so long. And it finally crossed my mind: the log in my eye is myself. My pride, my ego, my vanity, my desire to be the one who is worth noticing and worth recognizing.
What was it C.S. Lewis said? The real trick for the powers of evil is not putting things in peoples' heads, it's keeping the obvious things out.