Two old priests and a young priest are fishing out in the middle of a lake when suddenly one of the old priests says "dang, i forgot the sodas." So he steps out of the boat, walks across the water, grabs the sodas, and walks back across the water to the boat. Then the other old priest says "hey, i forgot the sandwiches." So he too steps out of the boat, walks across, grabs the sandwiches, and walks back to the boat. The young priest couldn't believe what he saw. So, when one of the old priests says "whoops, forgot the sunblock," the young priest says "don't worry, i'll get it!" So the young priest stands up, steps out of the boat, and promptly falls in the lake and starts flailing around. The first old priest looks at the other one and says "maybe we should tell him where the rocks are?"