None of the doors in this house latch properly :/ it's not possible to dog-proof our entire house and with doors that don't latch properly the dogs could easily let themselves out. Thankfully Shay is a bit older [3 years old, ex-racing dog] and well and truly grown out of the puppy stage.
We did have a chain in the backyard, set up for when we aren't home, but the neighbours weren't especially pleased with the terrible noise that came from my nearly-six-year-old ridgeback cross. Apparently it sounded like someone was murdering her. To keep the peace with the neighbours we stopped using the chain. Our dogs have full run of the house and backyard, always, and chaining them doesn't go down too well! I had to chain my dog when we lived on a small hobby farm because she was a livestock chaser but the nearest neighbour was a good 50m away and the neighbours on both sides understood that it was better she be chained than risk her jumping the fence and killing a sheep.