I live outside the city limits in the country. I'm off a quiet dirt road with little traffic. I do not have a fenced in yard. I do have a dog he's a little over 1 and his name is Henry. He is a mixed breed of bulldog and some of sheep dog. He's very friendly and some what hyper (that's the puppy in him still). He's a inside dog but does go out to use restroom and play. He just runs loose. When we leave home he goes in the big indoor cage.He's gotten along with every other dog I've seen and with our cat who lives in and out.