Bulletin Today | Personal HealthBy Russ Mitchell for Kaiser Health News This story was produced in collaboration with Fast Company. Rarely is nurse Cindy Steckel possessed by fantasies of unspeakable revenge. Toilet design, however, does provoke her fury. Whoever is responsible for the slim-doored, cramped configuration of patient bathrooms in most American hospitals draws her scorn. “I don’t know if there wasn’t such a thing as a walker back then,” she says. “But if I could get my hands on the guy who designed …