Since I brought home my new puppy Luna, my senior Dog, Chaya gives out a warning bark every time Luna gets anywhere near. Its to the point where Luna will jump on the couch, not anywhere near Chaya. A foot or two away and Chaya will bark. I can understand a warning bark when Luna is on her or rough playing. But Chaya is barking at nearly everything Luna does near her. My patience is wearing thin. How can I get Chaya to stop this 'crying wolf' so to speak.