He slid away the first bit of shoe like Prince Charming doing a reverse Cinderella. Gently, and put it aside with as much care. He didn't mind that she was already bleeding.
Grinning up at her, Jack cupped her foot in one hand.
"You might want to lie, though, small one. Think of the danger to your normal life. After everything I do, when I let you walk out of here, they'll wonder why you aren't dead. They'll wonder what did she do to stay alive and how come when he kills everything else, this girl got to live. So many questions I doubt you want to answer, Baby Nigma. Will they let you keep your place as a singer if you are close personal friends with the Joker? They all know that that madman hurts his friends but always lets them live."
Not quite so careful now, Jack ran the tip of the razor along the bottom of the foot in his hand. Heel to toe, pausing to give an extra gouge to the soft spot where the toes joined the rest of the foot.