His reflexes were fast, but he wasn't expecting her wand to be at his throat so quickly. He cursed the fact that the sun was up, he was tired and also rather distracted by the fact he was surrounded by so much blood to be had.
His eyes widened, a little respect for the fact she had stopped him. He gave her a pathetic little look. "I'm sorry, I'm so sorry," he said in a pleading voice. I'm just... it's been so hard since I was turned... I sometimes have trouble and I lash out."
"I really didn't mean to..." he stepped back, putting on a scared and terrified face. "I..." he spotted the vials of blood and gave them a hungry look. "I'll be okay if I have just enough to stop the cravings."