I have a fenced in backyard on 3/4 of an acre property. I have a baby gate that prevents dogs from escaping out the front door if opened at any time. I have a crate if needed for crate trained dogs. I have security cameras, one of which is pointed at the crate and can be turned on and off at any point. I have two dogs. An 8 month old English bulldog who loves playing with other dogs, kids, and adults. He loves everything. I have a 6 year old Shiba Inu who will play with dogs, but prefers people. He is very friendly but mainly keeps to himself. None of them have food or toy aggression. They share nicely.