Just now, Lewis simply had to exit the house to bark at the neighbor’s yappy rats. I wonder what their barking means to them? Particularly since they do it so regularly. Is it just the dog’s version of: “Hey Fatso!” “Oh yeah?” “Yeah.” “Yipsqueak!” “Lumpy.” “Oh yeah?” “Sez who?” “Sez me.” “Bite me.” “You wish.” Etc. Or is more info passed on? Or is it just a ritual, like patrolling the perimeter? Probably some expert has a hypothesis, but how could we ever really know?