Because a flute is hollow, once a person is stabbed it will drain out the blood. That's why some Bowman prefer using hollow arrows. It acts as a duct and drains the blood out of the body. This helps kill the animal quicker or if it runs, there will be a easy trail of blood. You guys joke around about the flute, but I was serious when I mentioned that she should use it as a stabbing weapon. It just has to be sharp at the one end and it'll funnel out the blood. It's better than a kunai.