You stop and do your best to find the owner. If the dog is still alive, you either put it down or haul it to the vet. A dog shouldn't be in the road, but we've all had one do it. Our last dog that got hit right in front of the house, the jack wagons didn't even stop. My mother in law just happened to pull in and see the dog laying in the road still barely alive, so as I loaded the dog up and headed for town, I had Dad park the semi cross ways in the road and go home. (Dead end, and they were still north of the house) Several hours later after my little girls dog had died, I made believers out of the two that decided not stopping was the best plan of action. Was it their fault the dog was in the road? Absolutely not, but the right thing to do (at least in front of the only house on the road.....maybe not in your town dog situation) would have been to stop and let us know.