Mayhem. :)
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My favourite one, the raccoon. "I've already had, like, four babies!"
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I feel like there needs to be fic: the Doctor vs. Mayhem.
"I'm the shields on your TARDIS, and you forgot to put me back up after the Master turned your ship into a Paradox Machine. Now you're in trouble, because there's a giant intergallactic space cruiser headed right for you, and your 15 minute TARDIS insurance isn't going to cover that hole the Titanic is gonna punch in the wall. So get Allstate and be safe from Mayhem, like me."
SEE?! It writes itself.