We've never had one but I understand why you would consider it. Having such a large property, a real fence would be so expensive. Maybe just have a dog run installed to the side of the house just for thier business? Beenie is fine with no fence or leash. She has always stayed in the back yard with me standing there supervising. She does her business and comes back, even with squirrels or bunnies within a few feet of her. Frankie on the other hand needs to be on a leash when outside. He's unpredictable and has a high prey drive. He'd take off after a bug if not on a leash and an electric fence would not stop him. Good luck in finding a solution.