My mother has a one year old Shih Tsu bitch, she has had her since she was a puppy and she is very well house trained. She is a lively confident and mischievous dog, she gets on well with the other dogs in the household and she enjoys attention from from family members and visitors. The problem we have is that when she sees my husband (we usually visit weekly) she gets so excited that she wets herself, it doesn't happen with any other visitors, just my husband. Why does it happen and how can we solve the problem? At the moment we have to ring ahead for the dogs to be put out in the garden before we arrive.