My dad had an old coon hound that he would take out hunting. Dad would pick up his buddy 2 miles away in town and they would go out. The dog was kept kenneled up at night at our place but a bad storm came through one night. Somehow this dog escaped went the two miles into town and no idea how but got inside my dad’s friends house and woke him up in his bedroom.
Still have no idea to this day how it was possible.
in my brother's case the dog does sleep inside so that part is less creepy but how they manage to get in and out of places is a good question. That's one determined dog.