I want to lie, but I know there's no point.

"You grabbed my arm when I tried to stand up," I say finally.

"Grabbed it?"

"No - not grabbed. I mean you took my arm. You just... just set your hand there."

He nods. "And then?"

And then what? I don't know where he's going with this, but I'd be squirming if his eyes weren't pinning me to my seat.

"And then you left it there," I say. "You didn't move it."

"I ...