Radagast in The Hobbit Film (SPOILERS)

[Galin]

At another site the rabbit sled was characterized as hailing from Northern sources, and others seemed to be very thankful for the information, giving the impression [to me] that they thought the idea was thus better defended because it hailed from sources Tolkien had read* or was aware of, and could be characterized as Northern. And I only say 'others' because, even if so, I would find this rather broad in any case.

Or from another perspective: the idea was argued to not be wholly original. But if it was, I'm guessing it would be defended with: '... at least it's imaginative and wholly original!'

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*Bifur's brow bursting brain befuddler was likewise compared to a piece of hone once lodged in Donner's head.