God bless you for allowing Willie to be able to try and be 'normal' in this way! Too often these kind of dogs get tossed and I do mean tossed due to some kind of disability or age. My niece was up to 16 dogs that were old, had cancer, or blind. She has dogs that have only 3 legs. In my mind, I am not one who could do what she does. I say this knowing that I thought I could not give dog inject ions for more than 4 year w/diabetes. I know this dog appreciates and loves you more for the effort you make in his life. Dogs are a gift to me as I never experienced any kind of abuse from any of them as I have with people. (Sad comment) Once again, may God bless you for your acceptance and assistance to little Willie. I pray it works out and please let us know.