There's also an interesting-looking talk that he seems to have done on Idiotic Perl. I think it would be really interesting if that would be expanded into a book. The first few chapters might address really bad code (as he's already done), and later chapters could go on to address the kinds of things BastardOperator mentioned in Perl secrets. The middle bit would just be stolen from Ovid ;)

Some might wonder who would buy a book of bad programming practices instead of something like Effective Perl Programming. The answer, of course, is anyone who delights finding flaws: the people who talk about how something is historically inaccurate or against the laws of physics during a movie, the people who laugh at typos in books, the people who highlight all the spelling errors I've made...

Well, I'd buy a copy (I'm the one who points out historical inaccuracies in movies).

Update: Ovid, of course I meant your comments about showing the dangers of bad code! :P Just look at where the link is pointing...