I would keep a close eye on Rosci, and hire a lawyer. That woman had no right to assault your mother (or anyone for that matter). Also, I agree with the Friendchip Microchip..I had Muffin chipped a couple of months ago. It's not very expensive. I think I paid $30. And I have peace of mind knowing that if something like this happens to her, I have proof other than her papers to show ownership because, like someone else already stated, yorkies can look alot alike. Good luck! Muffin's mom