I feel reluctant to directly contradict canon in this case by having McGonagall not transform the pig, never mind the havoc it wreaks on all neighboring paragraphs. Do you have a different suggested fix?
I'm definitely in favor of a wizard did it. Word of God might be enough on this one, though a don't try this at home could still be called for.
ETA: TVTropes warning
ETA: There is now a third thread, so send new comments there.
Since the first thread has exceeded 500 comments, it seems time for a new one, with Eliezer's just-posted Chapter 33 & 34 to kick things off.
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