Memetic Mutation: "You're only supposed to blow the BLOODY DOORS OFF!!!"
Narm: The clip from his "Acting in Film" program he did in the late 80s where he tells workshop students to "not blink" as a key acting technique. He looks into camera "And I don't blink and I just keep going and I don't blink and I just keep on going..." for a minute. A whole hour of it repeating over and over can be found on YouTube.