When the truth comes out, and it does, it's no fun seeing your name in the newspapers or being taken to court. It happens and will continue to happen. Difficult decisions have to be made and, at the highest level, there is money and political interest on the line, the decisions can be very hard. Keep it simple and Ethics can help you not only make the right decision in difficult times but to form strong and lifelong character in the athletes you work with. See also the NCF Code of Ethics and an interesting site Bioethics which has a special section for the medical issues raised on the ER television program.
Many people allow themselves to get angry and frustrated when they hit problems.
There are some simple techniques for solving problems but, like any skill, they requre practise.