This week on brain this is the story of a woman who snapped. Haula reed was a budding environmentalist with a peace ecology flag hanging on her bedroom wall. One afternoon, she heard the cracking of trees and a low rumble. She realized that her neighbor was knocking down trees to build himself a shorter driveway. And something in my head just snapped paula's dad had bought a macheti in his travels through south america. In shorts and bare feet, she climbed upon the bulldozer and swung the blade. Metal struck metal. The bulldozer stopped, then retreated. Paula chased after it, cutting ribbons in the air with the macheri. I