In a former life I owned/operated a FedEx Ground route. The toughest people to deliver to were dentists. Most were not open on Mondays, they opened at 10AM, and took long lunches. The older guys with the more established practices were open on TUES-WED-THURS.
I came to refer to dentists as "pro golfers who every once in a while drill a tooth."
One great guy on my route was a dentist that flew in his spare time.....he did, unfortunately die while on an instrument approach into an airport in the northeast shortly after he retired.
I really don't think that there's a choice he when you weigh all of the factors.....if I had the brains, I'd be a dentist.