>>it seems from what I've heard that the breeds like sighthounds have more of the instinct to be on the look out for prey, so Italian Greyhounds/Whippets/ Basenji & Shiba folks always caution new owners about this tendency. I'd put JRT/Rat Terriers in this category as well. So much depends on enviroment & training. Our back door opens out onto deck/fenced yard & we rarely use the front door, but then we carry/leashed the dog straight out to the car. Most of ours stay back from the door if we go out it, a couple seem interested & we have to say 'back' or 'wait'. Some folks, if they have a dog inside/part of the family since early age, the dog can 'learn' alot that isn't specfically trained. Hope this gives you at least part answer to your question.
>>>>>>>>>>>
My breed--Belgian Tervuren--are big-time door-dashers, and many new to their homes have been permanently disabled or killed as a result. Being hit by cars is common when dogs dash out doors. Gabriel came to me with that problem at 21 months. I'd had him 4 days when I got out of the car to close the garage door (didn't have an automatic opener then, do now), and he took off and ran through the neighborhood. I only caught him by throwing myself down in someone's front yard on my back and grabbing him when he came to check that out.
Before we got him trained, there was one more scary incident. My husband had forgotten we had an untrained one in the house (door-dashing is priority training at our house--that problem doesn't last long here). We were returning from a family thing, bringing a bunch of stuff in. I came in the door and carefully pulled the storm door shut. He impatiently snatched it open while yelling at me for closing it. He had his arms loaded with glassware. Gabriel dashed out that door. My husband caught that dog by the FUR, without dropping anything, and kept him from getting his running feet off that little porch. He didn't even drop any of the stuff, but when I quickly hustled out there to get secure hold of Gabriel's collar and get him back in, he was precariously balanced leaning on the wall! He did not forget again! I was very impressed. Only a REAL man could make that catch, LOL!
Dogs new to your home need to have ID tags put on right away, and kept under top security! The same with the car. And training never stops. I still train on door-dashing every time I arrive home with a dog in the car, when getting out, and every time we arrive anyplace in the car. I put the leash on the dog before opening the door except in the garage. In either situation, if the dog jumps out without permission after I open the car door, I stop right there, have the dog get back in the car, and have the dog wait for permission before getting out. This is life and death stuff.
-----
Kathy Diamond Davis, author, "Therapy Dogs: Training Your Dog to Reach Others," 2nd edition, and the free Canine Behavior Series at www.veterinaryforum.com