There are some hilarious passwords listed, just keep entering combinations of profanity to see. f*you is there etc.
My LinkedIn password was also used for a rather old, unimportant POP account. So I went into Viginmedia account settings to change it.
Not only does Virgin enforce a maximum password length of 10 (what?!) this fact also lead me to discover that the company has a profanity filter on its passwords. (Double what!?)