I think part of the issue is that it is possible to record using a smart phone without the doctor knowing. Sometimes it isn't the patient, its the nosy friend or family member. It helps to know the law in your state, in case you find out later.
We run an office lab, and draw blood on our patients, and had an issue with patients wanting us to draw blood for other doctors. Having the line & verse of the Physician Office Lab regs shut up the argumentative ones.
