Over at Listable, a tiny webapp that creates linkable, uh, lists, one user has posted a list of "Passwords you shouldn't ever use." We're wondering if our readers, IT guys or otherwise, have seen worse.Not that we necessarily want to revel in the really bad, insecure, or otherwise impractical passwords and security questions we've learned from friends, co-workers, vice presidential candidates, or, er, close Lifehacker relations. But you can preach the gospel of secure password schemes 'til you run out of breath or typing strength—sometimes it's the bad examples that really teach us what not to do. jono Ellis' list is practical and a great password-don't primer, but far from complete. We'd love if you could share some bad password experiences, or memories, in the comments, possibly benefiting a future round-up. But, you know, make sure you or someone you could be identified with are not actually using one of those passwords.