Hi, I have a beautiful 8 month old Airedale who has had a change in temperament. She has started chewing window sills, garden hoses and me! And anything else she can get her paws on. When she is doing this she starts to growl. I can distract her with a toy for a while and then she will come back to chew on me. She is walked daily, and during the week spends most of her time between 9 - 5 by herself or with the cat. Weekends she tends to come most places with me and behaves wonderfully. Not sure what I have done wrong?? Any ideas gratefully received. Thanks Helen