Problem
You are on a camping trip, and your friend Joe is starting to clean a fish that was caught for dinner. Suddenly, the knife slips and cuts Joe's left arm deeply. While the blood does not come gushing out, the blood does start to flow steadily from the wound. You are bothered a bit by the sight of it, but you know you need to help. You take a deep breath, control your emotions and go to Joe's side. What exactly do you do?