Those who don't write it down deserve to be locked out.

I've written down mine on three different pieces of paper (in my wallet, my bag and my closet), and also took a screenshot from it and `gpg`-ed it (with a passphrase, so no one can open it unless they know the password) and stored it in a few online repositories, as well as a friend's mailbox.

So, I'll never be locked out from my account.