A person needs to undergo surgery. Someone shot him. He will die in three hours. No one knows him. He has no family. He comes to the hospital and his mental situation is bad. He seems to be crazy and says irrational things. He can't think or make decisions for himself. You are a medical doctor. Do you go in surgery to try and save his life even if the patient says he doesn't want it (you clearly understand that the choices he makes are not necessarily logic)? So, I basically came up with this question. What does the doctor have to do? Does he have any consequences if he doesn't follow the patient's desires? Does he have to consult someone? What would happen if this situation wasn't urgent (say he will day in three months because of cancer)? What do you do?