Chest heaving, Greg weaved between the oncoming trees, zigzagging in a broad pattern, desperate to lose his pursuer. He stomped in a stagnant puddle soaking his socks, but he was too terrified to notice.  Left, right, left, straight, his mind raced along with his body, trying to conceive a path to shake his tail. He dared not look behind him lest he risked falling. Unfortunately, this happened regardless. As he swerved to dodge a tree, Greg placed his foot on a baseball-sized rock.&nb