She continued, "I have never had a balloon pop, aka uterine rupture. Sometimes, the balloons may get stuck or rip a small hole, making the ping pong ball harder to get out or stuck. I just tell the students that this shows you can't plan labor and delivery. You may have to have forceps, vacuum extraction, you may tear or end up with an episiotomy, or an emergency C-section. There are a multitude of things that can happen because childbirth is so unpredictable. This activity gives them a demonstration of that."