Trump's already deaf (to anyone who doesn't say what he wants to hear) and as for brain damage, well....
This nonsense about a dragon taking over the world though. Really! I mean, I have Elijah all securely tied up in the deepest caves from which he can never ... excuse me - yes? What? WHAT!!! You did what? He did what? You idiot! I TOLD you to use chains MADE ONLY FROM DWARVEN STEEL! You KNOW he can break any other -- now what do I tell the world? No I don't care if it's your first day! Do you realise the peril you've put everyone in?
Sorry, I got to go....