I have seen a few loose dogs in our neighborhood since we have lived here. Normally I try to put a leash on them and then walk around to see if I can find their owners. I would hate for them to get hit by a car. If I can't find their owner's I call Animal Control to pick them up.
In Chesapeake, VA they have a free ride home program if your dog is loose they will bring him home if he is wearing his tags. I don't know why people don't keep tags on their dogs.
I just don't feel that some people should be pet owner's if you wouldn't let your kid roam the street naked why let your dog (naked being no collar)? Oh, and to not be neutured how irresponsible! I would add in here that you wouldn't let your kids roam the street alone but I have seen a bit of that in our neighborhood, little kids outside and no parents insight.
Poor dog, I hope someone picks him up thinks he's a stray and gives him a good home where he will be neutured, given a collar with tags and if he gets out the owner will be immediatly out looking for him.