He convulses – body stiffening, back arching, teeth slamming together with a loud clack and a horrible sound of pain grinding out of his throat. He curls forward as his muscles spasm and tense, nearly falling, but she keeps holding the prod to him as she counts to five in her head and he continues to shudder and make that awful, quiet, animal sound. And then she pulls it back and he slumps and gasps, shivering for a moment, his chest heaving as he wrenches in sobbing breaths. He won't meet her eyes, his gaze fixed on the floor as he hugs himself and pants at the air, trembling like a leaf, biting his lip, nostrils flaring and eyes squeezing tight shut.