My sister has a 20 month old Skye terrier, who is delightful. They had a rescue Skye years ago, who just turned up on their doorstep. They ignored but eventually took her in, advertised her locally, etc, but she stayed with them. They are very interesting little dogs, particular characteristics.
I agree with Jilly Cooper though merlotgran, our rescue dogs all seem to have had a moment when you could almost see them thinking, "phew, landed on my paws here,". After that, they seem to settle down, stop chewing, stealing food etc and become great companions.
Scooter58, I'm sure you are right about the increasing number of people setting themselves up as 'professional' dog walkers. There don't appear to be any regulations in place to ensure these people are qualified and appropriate to do what they do. I know dogs aren't babies, and we shouldn't need the extensive checks done for child minders, for example. But, the potential for dog fights, lost dogs, etc must be increasing if we have people who are irresponsible enough to have 5 dogs, not their own dogs, off lead in public spaces.