You are in the place of Jotaro (or him himself). If you hurt steely, it wouldn't matter because the pain would just transfer to poor ol' Joesph Joestar instead. For now, you needed to keep him occupied until the others had found a way to get his stand to stop. He could tell you whatever to do, the two of you were soon you come across a ditch. "You know, you're a well built.. I bet you'd make a great bridge." Dan said