I guess I'm igronant too, my yard in Idaho wasn't fenced and I didn't own the place. So I kept my MUTT on a chain, had shelter, food, and water too. But I guess maybe we just don't have the brain power to take care of an animal Brent!
We also regularly shot strays, and problem dogs, collar or not. If my dog got out and caused a problem I wouldn't hold it against anyone to do the same.