We have recently adopted a 2nd Yorkie. Our first yorkie is 6 mos old, and is *almost* housebroken. It's like having a new baby - you forget just how hard those first few days/weeks are, but they are totally worth it.
I think Rocky would LOVE a playmate, especially if you are gone during the days. Be sure to spay and neuter so there are no surprises down the road
