Sure enough, when I tried it again, it knew the code had already been used...
Oh well, at least I sort of lucked out in this quiz:
Rohirrim
To which race of Middle Earth do you belong?
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I've always fancied myself as a Rider of the Rohirrim, perhaps because I love to ride in real life (though sadly, I don't get to indulge in it much these days), but mostly because they're not as high-falutin' as the Elves or the arrogant Lords of Gondor. Just give me a swift horse, an epic song and a horn of mead, and I'll be alright.