Just when I think Sadie (who's 16 months old) is finally completely trained, she has an "accident" (and I use the term loosely). I can always tell when she's made a "mistake" just by the way she acts so guilty - it's a riot to watch her sneaking around. It's soooo hard to get mad at her. For the most part though, she's 95% potty pad trained. GRRRRRRRRRRRRRRRRRR!!!!!!
But I went into Yorkie ownership with my eyes wide open - everything I had ever read about them said they're very difficult to potty train. I guess all of their positive attributes make up for this one little issue.