Tony drank the blood Katherine offered him until she pulled the wrist away. He nodded in understanding at her words. After several minutes he winced in pain as he felt his leg and wrist healing, the bones mending back together as if nothing had happened. He clenched his jaw shut and tried his best to stay quiet to show Katherine he was strong. Or something.
After several more minutes, he felt fine and the pain in his leg and wrist were gone completely. So was the stiffness in his back for sleeping off and on in an uncomfortable kitchen chair. "No stupid stunts," he agreed. He looked up at her. "Is there anything else I need to know?" he asked.