Once upon a time, there were three friends who have decided to take a short break from a long discussion. They agreed to row a boat to the middle of a lake and have an afternoon tea.The three friends rented a boat and rowed to the middle of the lake. As they sat down to enjoy their tea, they realized that they had forgotten to bring the teapot. "I'll get the teapot," said the first friend, voluntarily. He stood up, put one leg over the side of the boat, and began to walk on the water to the shore and back to the boat with the teapot.As they boiled the water, the realized that they had forgotten the tea leaves, too. They laughed at each other, and the second friend volunteered to take get the tea leaves. He put one leg over the side of the boat and walked on water. He returned shortly after getting the tea leaves by walking on water, too.