Sounds to me like you really want to be a lawyer, being a Vet is not all about saving a life, sometimes it is absolutely necessary to end a life and give peace..... if it bothers you now it will bother you even more if you have to do it....... follow your heart and not someone elses...... every job has it's bad side.....the decision is yours its your life and you have to live with it what ever the outcome......