I read your messages about 'running dogs' and was wondering how you always knew about them. That is a wonderful thing you and your friend are doing.
I have never had a dog walk or run off. I would say I am lucky, but I cannot even think of a time where any have had the opportunity. They are never out of my sight or more importantly my voice. My comment is not to go against what you suggest as chipping is clearly a valuable thing. so I hope I do not come across that way.
All that said my current girl needs help getting off the floor, I do not think she could run off out my Villages postage stamp yard even if she
pretended that old age has made her deaf