[ Flynn shouldn't laugh, really, because it isn't funny and because he has the exact same worries and his are borne out, but he snorts, ducking his head to hide the sound, and comes back up bright-eyed with a bitten-down sheepish smile. ]

Sorry, I'm sorry, it isn't— I just really can't picture you as a serial arsonist at all! It isn't funny, really, and I suppose it's possible, but... well, I wouldn't put any money on it, so I'm sure you can strike that specific worry from your list.