Hi have two yorkies; a boy and a girl. They are both two years old and have been through so much. We have been in our new house since June of 2006, and my dogs have not changed their bad ways of pottying around the house. My boy, Beemer, is worse than Alexis. We also have a cat who roams around the house at night. During the day, Beemer will lift his leg and mark his territory anywhere that the cat has been. Occasionally, Alexis will follow his lead and potty as well.
Oddly enough, Beemer also seems to be pottying all over our floor in our master bedroom. This is where we keep them when we leave the house. They also have access to the doggie door from this room.
Beemer and Alexis seem to know that they NEED to go potty outside. I just can't quite understand why I can't break him of this bad habit of marking this territory ALL over the house? I have tried re-training him to go outside, but that hasn't done the trick. When I realize that he did something wrong, he will run under our bed, as if he knew that he did something wrong and wanted to do it anyway.
We took a black light to the carpet in our master bedroom and it seemed like there were thousands of spots! We have to get our carpets professionally cleaned every two to three months. I feel that it's a bit excessive.
If you can relate to this or have a solution, please let me know, because I just can't live with him like this.

Thanks!