Richard Clarida probably wasn't trying to ruin anyone's fun on Wednesday, and on any rational interpretation, he didn't. US equities were fine. Sometimes, it feels like market participants need to be reminded that daily moves on the benchmarks should be quoted in percentage terms, not in points. You laugh. And I laugh. But we do forget that -- if only for a fraction of a second. I don't care how long you've been in this business: If the Dow falls 323 points, you instinctually do a double take.