Perhaps Guillaume should have expected a man such as Church to do something outside the boundaries of good taste, but punching him? It's so unexpected that he doesn't have any time to react beyond a flinch right before the fist connects and Guillaume's whole body jerks in response. His balance is thrown off and he stumbles to his right, just managing to stay upright, but doubling over in pain, his hand coming up to his jaw. Maker's breath, is it broken? Can a punch break a jaw?

This is not how he envisioned things going, and when he straightens himself, he's really trying hard not to cry.

"You can't do that!" he protests hotly, face turning red. Does Church not realize there are rules to this sort of thing? "I had heard the Inquisition was a noble group, bringing peace and order to a world gone mad." His voices raises, waiting everyone around to hear this. "But did you know you have a brute amidst your ranks? A man who will not even follow the protocol of a duel like a gentleman?" The hand not massaging his jaw balls into a fist at his side. He really wants to hit Church back, but he will not lower himself to such uncivilized tactics.