John Weiland wrote:We've had too many escapes and too much fence to patrol, so my wife opted for the "Invisible Fence" [ https://www.invisiblefence.com/ ]. It's not a foolproof deterrent and still requires some hands-on training of the dog to the 'no-no' perimeter, but they eventually respect it quite well for inhibiting the urge to chase things past the fence. We've had mostly Anatolians and it works even through the thick neck fur. Good luck!
When it works, it works well.
I had boxers when I have an underground fence.
One stayed it in all the time.
Another only went through if she perceived a threat to our kids (this was in neighborhood setting).
Our next boxer could not be trained to it. Boxers are not the smartest dogs but they are stubborn.
This was decades ago now, I would just highly recommend you go through all the training steps.