I always make sure fences are locked and no one is in the backyard before letting a dog out to go to the bathroom. Its important that an animal's bathroom space is cleaned regularly to avoid unsanitary conditions as well as make sure that the animal's snaitary area is clean before coming in the house. All pets need to be leashed on walks outside the home. I prefer harnesses so that there is less of a chance of dogs slipping out of their leash and so that their collars do not hurt them. Eating too quickly can be a safety concern, so I would recommend slow feeder bowls and lick mats for safer meals. If certain areas of the home are not spaces for pets, fencing off hallways with baby gates is extremely important. If your dog is kennel trained and is safest in a kennel when humans are not home, then I can return an animal to their kennel before leaving.