Again, not the dog's fault... But I hate to walk and keep looking at the floor to make sure there is no dog shit on my path. And NO, it's not OK if the dog shits on the street it's the same fucking thing.
Those owners should be forced to get the shit, take it to their living rooms (or bedrooms, better if there is a carpet) and then step on the shit and spread it all over their houses.
Dogs don't deserve some people.