I have 4 dogs...2 are old and stay inside with me. The younger two are also inside dogs, but get put outside for "playtime". One is a 3 year old shepherd mix, Frankie. One is a 10-11 month old Chow mix, Molly. They are best buddies. They run and play and playfight and chew on each other and have a grand ol time. However Frankie is very territorial. He spends his life barking barking barking. When he is extremely upset at the fenceline....usually because of a neighbor close by or loose dogs, he will run up and down the fenceline barking ferociously. Molly joins in for fun, and if she "gets in the way" he attacks her instead. She generally just hits the ground and waits it out...sometimes she fights back. I am usually nearby and can yell at them to quit (although more often, they quit on their own after a few seconds). Is there any way to control this? It seems to have gotten worse lately.