Yeah I don't think I'd try to electrify the entire hardware cloth fence. I have a chain link run and I just ran my hot wire around the base on the outside, about 6 or 8 inches from the ground. Every dog that has approached my coop/run has gone sniffing around the perimeter, as is their nature, and has eventually put his nose on that hot wire. None of them has made a second attempt, it has been very, very effective. There are a few local farm dogs that occasionally stop by our place in the company of their owners, most have tested it and been zapped and now they all look at my chicken coop with great suspicion, as if there is a terrible monster lurking there, ready to sting them on the nose!