Disclaimer: nothing is mine, everything that should be Rowling's is now WB's.
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This came to me with a flourish and I had the undeniable urge to post it. So here goes:
This is Ron talking, by the way.

Mad-Eye Moody may be really quite disgusting.
Though it's not because his motives I'm not trusting,
But his eye, I should suppose,
Can see right through all our clothes.
So for naked Hogwarts kids, he might be lusting.