This guy in Guam kind of explains it, I started the vid around the 36 minute mark when he started speaking, then watch for the next 6-8 minutes,
Basically he is explaining that doctor's work is called a practice, as in their work is "practice". I've heard that before but practice for what, I do not know. They basically "practice" on their customers(patients), and so when they do something that goes wrong it is "mal-practice" they use words that protect them in court. Doctors don't call themselves healers or teachers. So sad that so many trust their doctors and the pharma industry to "practice" with their lives.