Faced with pelting rain, Clem Newby hung back from following his herd out of the milking shed for a few minutes. It's a move that might just have saved his life. Five hundred metres down the farm race a lightning bolt from a vengeful sky north of Hamilton struck and killed four cows on their way back to the paddock on Tuesday morning "It was a hell of a bang," Newby said. "The lightning was just horrific and it really frightened myself. I had never heard anything like it in my life and it really shook the cowshed."