The Spellcheck Poem

Probably many people have seen the comic poem designed to point out the weakness of JUST using spell-checker and not proofreading?

(The definitive version is here.)

It's often attributed to "anonymous," but it turns out it was written by none other than Jerrold Zar. Who also happens to be the author of the biostats textbook I use. (I found this while tracking down the errata -and wow, are there ever errata - in the new edition we are using. I don't think the errata were his fault, I do think that proofreading/checking of textbooks has declined greatly in recent years.)