awww arn't they cute! The puppy will mellow out as she gets older. I have a 6 year old Lhasa, (bigger version of Shih Tzu ) and as a puppy he was almost as energenic as my Baxter was. But chilled out by the time he was a year old. Good luck and enjoy the fun you are going to have.
__________________  Darlene, Zeke  and Baxter |