I've got 10 acres, with just a regular barbed-wire fence. My property starts 200 feet off the hwy, with a pasture of cows in-between us. My house is about in the middle of the property. I'm hoping the invisible fence will work. Its a bit expensive, but it will be worth it. I feel like I should wait another day to decide for sure, but I think I'll try it. If it doesn't work, I'll have to take him back. I think they will all be safe with a pyrenees presence. He is pretty big, and there is plenty of wild lands around us. Its not like people are taking over territory and forcing the animals out of the woods like in some places. Large predators tend to stay away from people. My chickens were free-ranging for 9 months before some started to go missing. (or maybe the neighboring farms are doing some predator control). He isn't trained at all, doesn't seem to know his name, but he is very gentle and we communicate. Our animals are mostly pets. Our chickens like to come in the house. One inparticular, likes to lay eggs on a blanket on the couch. Kids give her so much praise and attention, and she eats it up. She's never pooped in the house. When she's done, she clucks to be let outside. The goats will probebly get tons of attention too. I think its okay to mix family with animals. A bit harder at culling time, but more rewarding overall. As I'm getting to know him better, as much as he has been wanting to be inside, being loved by people isn't enough for him. I don't think it'll be a probem to both protect the animals and be with people. He was very loving when I was with him the other day, but the instant he realized he was off the cable, he was off down the road. He likes people, but I don't think he needs them. I've got to get him some goats. Then he will have more of a purpose and sense of fullfillment. His mats were so bad that they needed to be shaved. I thought they would only shave the underside of him, but its too late now. I'll be careful about sunburn. And yes, we are working on training. Thanks for all the suggestions.