I think Stacey's article does raise a lot of good points. If Sheila is being kept outside alone, it is no surprise that she slipped her collar. She's lonely.
My first Cardigan Corgi was an indoor dog. I knew that Cardigans had been bred to herd sheep and are lively dogs that need a lot of exercise. A Cardigan is a deceptive looking dog. They seem small because of their short legs, but what they are is a big dog on short legs.
My Cardigan got two 45 minutes walks a day, lots of time playing ball with ME in the back yard, and the basics of obediance training. I fed him a good diet and gave him real meaty bones to chew on, as well as lots of chew toys. He was too low slung for his waving tail to knock stuff off the coffee table. He was house trained in two days, and the greatest "sin" he ever committed was my own fault. I'd bought a new pair of leather shoes and foolishly left the shoes in a box alone with my pup when I was suddenly had to go leave the house to do something. I returned home to a brand new pair of thoroughly chewed up shoes.
I'd say I averaged two hours a day doing things with my dog - walking him, playing ball, etc. He was worth every moment. The rest of the time he was content to chew on a bone while I read or watched TV or whatever.
A dog is like anything else. Your reward will be in direct proportion to the amount of time you put in with it.
Now, I'll go down with Tonchi for my rabies shot.
(Here's a pic of my new Cardi pup's older half sister winning a herding trial):