hi Pedro - in the future I am going to be getting a basenji. I am fortunate that I found this forum and am doing a lot of research so that I buy from a good breeder so that I can avoid Fanconi. My heart sank when you said you want to give your dog back. I think there are a number of people on here that can help you with information regarding Fanconi, symptoms to look for, and what to check every month (urine). The urine test is simple and not expensive at all. Pedro, try not to think of your basenji as expendable. Your dog has probably come to love you over time, and looks to you for his well being, comfort and affection. I hope you understand where I am coming from. I think we don't cherish life, of any kind, enough in our world sometimes.