Lucky you. I'm still whimpering at the mental image. And the idea of Seto's pretty hands being scarred.

Realistically? I wouldn't be surprised if his first reaction was to stare at Seto's hand, then push past him and be promptly sick in the bathroom. Don't forget that burnt flesh also smells rather horrid, and he'll have to deal with the smell and the sight when he wasn't expecting it or prepared for it.