Took down some trees with my FIl today. He is less methodical than I and less concerned with safety. I wear chaps and helmet and he doesn't feel it necessary. I take my take my time, watch my footing and move at a pace that allows me to be safe. He rushes, doesn't watch his saw, etc. He hooked a rope up to this walnut and pulled it with his backhoe as I cut, as I neared finishing the cut the tree snapped.......instantaneously this happened....Like a broken rubber band.....thankfully I was safely to the side making my cut. Scared the bejeezus out of me. He had pulled that rope way to tight with the machine....I learned a few lessons today while working with him. He is a great man and he heats with wood for the past 30 years but he is a hard headed Italian immigrant who has his own way of doing things.