Eh!? But you can't die from a rat bite, right...?! Is that what we're arguing here?!

[ He's gotten himself so worked up, he doesn't even know what he's talking about anymore?? What a mess. He doesn't mean to be ungrateful, but he also doesn't want a dead rat in his shirt... So Many Problems. ]

Okay, just...! What if I lift my shirt, and... you chase the rat away?!

[ Gesturing wildly, as if that'd help him make his point. ]