Grow some plants. Light a fire. Frantically try to put it out with water and watch helplessly as the plants grow due to water, providing more and more fuel for

Grow some plants. Light a fire. Frantically try to put it out with water and watch helplessly as the plants grow due to water, providing more and more fuel for the growing flames, until you have an unstoppable conflagration on your hands. There must be some moral lesson to learn from this.