Just recently I read chapter 17 of Divergent and before somebody had stabbed Edward in the eye. Everyone seemed depressed that Edward and Myra left because it was such a horrible event. Tris wanted to get her mind off of it, so she went with the Dauntless-born initiates and climbed up to the roof of a building and zip-lined down super fast to the ground.
I seriously think some of these people are crazy. Why would somebody stab somebody else in the eye? Maybe it was jealousy. The zip line seems crazy to though. The people in this book are extremely Dauntless.