Rudy has taught my other two all his bad habits
Even my 14 year old chow-mix barks when she wants in. Rudy would bark at night and scare me to death. I think they are learning noises. Rudy now at 11 months doesn't bark when I am sleeping now. He does bark when he sees or hears something, he is a good 5lb watch dog
I think they out grow it some as they get older.............Cindy
Maybe it is the third dog thing. Rudy is the baby like Mie Mie. Rudy alway want the other two's treats, even after he has already had more than them.