Technically true, but in as much contact in my lifetime that I've had with M.D.'s and therapists (and it is A LOT), I've personally never had that issue come up or even feared it when perhaps it could have been a possibility. Those would have to be some pretty extreme circumstances. Some of my luck though wasn't "luck" at all. I specifically and carefully choose my M.D.'s, therapist, pdocs, etc. so that they aren't the sort who would easily resort to such actions, and they know I expect to be an active participant in my own care and decision making. They respect and honor that, even in some pretty hairy situations.