BM, even the professional guidance doesn't always get it right. I contacted a professional website for Social Workers recently. They had put up a Capacity training module including a decision making flow chart example based on making the decision on whether a person, who definitely lacked capacity at that time and was also unable to express any opinion or preference at that time, should be given flu vaccine or not....it had been written for them by a District Nurse which cough "may" cough have had some bearing on it but no consideration had been given at all to any opinions or preferences that had been expressed when the person did have capacity. I am not saying that such opinions and preferences should trump all other considerations, but a preofessional should at least have to demonstrate that they have taken them into account!