[Frowns thoughtfully at the fireball - it looks like Merlin's magic, but, then again, he's completely magic-illiterate and it all kind of just reminds him of Merlin's.]
Yes, I've faced as much problems before. I've been asked to say something only the real King Arthur would say, except that doesn't work because there's no way to tell if what I say isn't made up on the spot. [... Sigh. He is sadly getting used to everyone just believing him a story or a myth, even if it also upsets him.]
Regardless, I can assure you that I'm not evil. [Lifts his eyebrows at Mouse] I'm pleased to know I've passed your inspection.