I have had my Harley since July and he has never went potty outside. He will use his puppy pads, but has never went outside. When I bought him he was 12 weeks old, and our breeder had never taken him outside due to not having all of his shots yet. She had been using pads and I think that that has alot to do with it. If he is going in the house maybe you should try puppy pads just so he does have a spot inside. It really doesn't bother me that he doesn't go outside, especially now that it is getting cold!
Jeri and Harley