Shooting fish in a barrel You are standing at the edge of a large barrel full of water and would like to shoot a fish in the water. Suppose you look at the fish, aim the gun directly towards it, and fire, as in the left picture. Will you hit the fish? If not, will you miss high or low? Draw a ray diagram (light rays) and explain your answer. Now the fish has a gun and would like to shoot back at you, as in the right picture. It looks at you, aims the gun at your head, and shoots. Will you get shot in the head? If not, will the bullet miss high or low? Draw a ray diagram and explain your answer.