The dangers of trying to rescue others from a deadly atmosphere can't be emphasized enough. A heart-breaking example occurred in Virginia earlier this summer, when four members of the same family and one other person died after being exposed to deadly methane and hydrogen sulfide gas at a dairy farm. Scott Showalter, a 34-year-old Mennonite farmer, was attempting to unclog pipes in a manure pit when he was overcome by poisonous gas. A hired hand ran for help and the family rushed to help Scott. Tragically, Scott's wife, Phyllis, 33, and two of their four daughters, Shayla, 11, and Christina, 9, […]