you are prices child, you have a rare heart disease. You went to school completely fine with your portable heart monitor clipped to your school jumper. Today you had PE, but your teacher wasn't in so you had a sub.the sub didn't know about your heart condition and they told you to take off your heart monitor, you try to explain that you have a heart condition, but the teacher thought you was making up an excuse. The sub made your whole class run laps, after one you start to feel ill