She has a tendency to just walk out the front door if I leave it open for any length of time. I certainly don't mind. When we're in Omaha, I have to keep her on leash because I'm afraid she'll run into the alley behind the house or the street in front of the house and get smushed by a fast-moving car. Up here, though, she's got a lot of freedom and takes advantage of it as often as possible.
There are a lot of times that I will go out looking for her if she's been gone for awhile and I discover that she's managed to walk up the lane and out onto the road - sometimes just wandering up the road sniffing at all the great scents or over to the park to see what is going on. Thank heavens traffic is light on this road. I keep a pretty close eye on her on the weekends because traffic increases with people camping in the park.
I fell asleep last night about 8:30 and Max woke me at 10:30 when he called after arriving in the Tahoe area. I let her outside and then hit the bathroom myself. I heard her bark. That only happens if someone (or thing) invades her space. By the time I got to the front porch, she was barking and chasing something away from our front area. Now, there was one of my fears coming to the forefront ... she is such a scent hound, I was scared to death she would chase until she was far, far away. Finally I heard her collar and she came bounding back to me - quite proud of herself for protecting her domain, I'm sure.