In children and adolescents there is a 3.9 percent chance that they will develop ptsd. That means if you pull 100 students about 4 will develop ptsd. That means you have a very good chance that someone you know will develop this. Do you know what ptsd does to people, sometimes it goes away with time but the other times it tears a person apart from the inside by making them relive that trauma on a daily basis. Does it make you want to do something knowing that 3.9 percent of people will turn out like this?