Hi, Our family has never had an indoor dog. We recently met a 5 mo old chihuaha (sp?) that has had a rough time finding a good committed home. My uncle has him right now. The problem and only problem he has had is he is not house trained, he will pee and poop where he feels like it. Now my understanding is that he's a puppy and he needs a committed home that will give him the time and love he needs and someone who will house train him. I am willing to do that. I'm wondering how to go about it? Some of my friends have told me that once they're 5 mo old there is no house training them. Is that true? Can someone point me in the right direction of a book or a very informative website that could give me instructions since I don't know where to begin? He is a very lovely dog and I would love to offer him a home. Thank you very much!