Christina and Toni practicing their breath-holding skills.. then Joyce the teacher/instructor has to leave the pool for a while and leaves the girls to practice on their own ... Could this be a BIG mistake. Toni holds Christina under by her shoulders, as she is trying to get her to get as good as a time as her.. but Christina struggles as she does this.. she is fighting for air as Toni holds her down. " Is she trying to her " Well Christina fights back and dunks her under the water. Joyce returns and is not happy at what is going on!! But does Joyce split them up or do they all end up as a thr... Show more