None of ours are. We have 8 dogs and 5 cats. We keep the 4 small dogs in and the others stay out in the fenced area it's a really big area though and they have lots of room. We don't ever let them out although they have gotten out when we opened the gate before but they'll only wander around the yard and then come back. Our german shepherd will stay out though and come when ever you call him. He listens so well, but our other 3 do as they please.