Having said that I did once have a very nice showbred Border collie that I got from a Queensland show breeder and she showed absolutely no inclination to jump fences or wander. She had zero interest in herding and I could leave her in the garden area while I left the others in my secure patio. In fact I could leave her running loose with no problem, compeletely trustworthy. She was raised running free on a smallholding with kids by her breeder and a nicer dog you would be hard pressed to come by. She now lives with my sister, kids and horses, on a small horse property on the outskirts of suburbia where she is still exceptionally well behaved and has no interest in the horses. Her only downside was her long coat that I used to have to keep clipped with scissors, but I spent minimal time grooming her. The only reason she is still not with me is that I needed working dogs and she much prefers life where she is now. She always gives me a good welcome when I visit but is not inclined to leave with me LOL.