He's just going to stand there and stare at Stiles for a moment, gaze hard and disbelieving.

He doesn't have time for your bullshit. "What could I have possibly done to make that happen? Huh?" Seriously. He doesn't get that the other can make such wild assumptions, even if he's used to them by now. It just never ceases to amaze him, whether he openly admits it or not.