You should definitely tell your friend to stop that. Now. She's putting her dog in huge danger of cars, cruel kids, vicious dogs, poisoners, and sooo much more! How does she know for sure that her dog will come back to her every night? He might be dognapped as a bait dog for pit fighting. . or brought into a shelter and euthanized before they can find him. There are also leash laws and stray dog laws. Allowing your dog to roam is a felony in the U.S., if he strays onto a highway or endangers people! I'm guessing her dog is not spayed/neutered also? Thats another huge issue with allowing him/her to roam.

I would never ever ever ever do that. Maybe 100 years ago it was decent to allow your dog to roam. . people had tons of property, no cars, no (or waay less) crazy cruel people running around. Now, its just not fair to the dog or to the public. Gonzo is kept inside when we leave, he has a dog door that he uses to go in and out during the day and he stays inside at night. He only has access to our 7 ft-fenced yard during the day, and he's ONLY off-leash in fenced areas or dog parks/trails. There are an amazing number of sickos in the world that go out searching for strays/backyard dogs to poison