Emily Lineberger missed her gymnastics class this week, but thanks to the 11-year-old's heroics, she and her mother survived what could have been a tragic car wreck. Emily was riding in the back seat of the family car Tuesday when her mother, Dayna Lineberger, started feeling lightheaded. Ulcerative colitis had caused Lineberger to feel faint before, so she decided to get food at a nearby restaurant.