Alea- this is so silly and below the belt- but yes, doctors do sometimes have dental appointments, hospital appointments, GP appointments (yes they do) (working such long hours in the late 60s and 70s, up to 140 per week, nearly killed my DH- and he has had to have very careful monitoring all his life, with regular hospital and doctor's apps, and was not expected to go past 50 due to the severity of the damage done to his kidneys after a strep throat that was not treated on time), solicitor aps, they do have children and wives who might have other commitments and they have to take over, they have parents that need help, or neighbours, they even (shock that I know) play squash or go out for a special meal for anniversaries- whatever. It's not easy to have a life outside being a GP, it certainly was not then, with umpteen homevisits to do all over the nearby rural area- some urgent requiring a doctor to dash out quickly out of surgery), and 1 night in 3 on TOP of normal week, and 2 week-end in 3 (including both nights of course)....
Superior knowledge!?! If you say so- I'd just call it experience of the FACTS and common sense. (your personal attacks are getting tedious btw- and don't do you any favours to be honest- but your prerogative).