Nothing new about that. And I should know that weblogs offer wonderful opportunities to do stupid things.
Still, I think it's worth noting this screwup--which I will leave up, albeit with the explanation embedded, because my Good Librarian instincts say you shouldn't delete something once it's published, even if it's a little humiliating.
Oh, and the joys of conversational blogs: Two readers caught the hoax within an hour or two of my post. I get great comments--for which I'm eternally thankful.
You might also take a look at the next post after that (or before it, if you go directly to the blog itself, with a few ill-chosen words about the wonders of caching.