I'm a big fan of PHYSICAL BARRIERS for a couple of reasons. First a strong fence (any type will do so long as it provides a physical separation from the outside & the inside) will keep the dogs in. It will also keep coyotes, racoons and other pests OUT. And while some wild critters can get in, and others will be fenced in when you put up the fence, the point of containing dogs is for their protection. You don't want them getting out so they don't get hit by a car, stolen, lost, injured, etc. Keeping wild critters out is a benefit to the extent that those that can't get in won't temp your dogs to chase them, nor will they fight them.
I have a cyclone fence on part of my property, very few wild critters have gotten inside that area. That is a good thing. None of my dogs has ever gotten out of that area (but the lovely Mrs_Bob's little yapping crap weasel has gotten under the gate, unfortunately he came back). Wire farm fencing, properly installed, is also a good barrier and it is far less expensive than cyclone fencing.
Something like a H.T. fence may work for your current dog, but will it work with a future dog? And what happens when that dog sees a rabbit scoot through the yard at high speed? Will that HT wire every 12" stop the dog? And will it stop anything from getting inside?
We don't have our property fenced, we have parts of our property fenced. The fence provides safety for the dogs by keeping them in and unwanted creatures out. Just a thought.
Scrounger . . . I loved that story. Were you sober when you wore the shock collar? /forums/images/graemlins/wink.gif