Really his main line of defense is the suspension of belief, the idea that the truth is far more impossible to accept. Fire-breathing... it's worth a shot.

But this actually captures his interest, causing him to pause in his eating and redirect his gaze when he notices himself watching too closely. "Sounds like it'd be a real adjustment." One Sasuke can't imagine himself making, not with so many other things having been stripped from him in his life. "It's been years since I've been able to see that place. I thought... ah, I thought I might lose my heritage. It's why I focused on retaining the language."