"I generally try to be polite, but a man has his limits." Having someone's foot phase through him is apparently the line? He grunts when her knee bumps his nose, but he bears it. He's too focused on that worrying lurch that has him holding his breath waiting for catastrophe to befall them.

But nothing more happens.

"Theoretically?" He obviously doesn't like the sound of that. "And what happens if you fail halfway through, theoretically?"