I'm not going to just stand still while you throw things at me!

[ ... not that he can move around all that much, either. The tunnel is narrow, he isn't going to abandon his post at his side of it, and she's blocking the other. But now that he says that, he draws up his blade. Instead of holding it like one might in order to surge forward and strike, he changes position so that he can whack away anything she pelts at him.

It's just gonna be a proper batting cage down here in this poopy tunnel. ]

I'll send them right back at you, so you really should just go home and take a nap.