Shock is absolutely a risk, and Foster's pallor and fast, laboured breathing is making it no small threat. But he looks more shocked--almost betrayed--when she turns the water off.

He sits, hunched--shivering, wet, miserable; the whites of his eyes are clearly visible. But even as much agony, as much suffering as she'd inflicted, the deprivation of it was far less welcome. He has no right to objection, though, so manages a weak smile, trembling and naked.