I have a 3 year old silky terrier, he was fixed when he was a puppy unfortunately he keeps on peeing in the house. We have to watch his every move if he is out of sight he is peeing somewhere inside the house. On occasion he'll do #2 as well, not as often as pee. We take him out all the time I have no idea what is causing this. He has been doing this since he was a puppy. Is there a chance that he was not fixed right and it is his male urge to mark everything he encounters. HELP!!