The first time I fed my girl a live mouse, she struck the mouse and hit it low and the mouse bit her neck enough to break skin. I didn't vote however because it still hasn't healed completely. She's had one shed so far and the wound is healing up pretty nicely, but I think there is going to be a scar when it's all said and done. Here is a pic (sorry, it's blurry, but look at the open wound three spots back from her head) from about a few days after it happened. It's looking MUCH better now though...