I was at petsmart today picking up some food for Joey, and looking for a tux for the ball

Well a lady that works there approached me (I didnt have Joey because I knew I needed to go to other stores that were not pet friendly), and asked mme about what kind of dog I have and blah blah blah...and I told her a biewer yorkie and then proceeded to tell her about him since she'd never heard of them.
THEN...she tells me she has a "teacup yorkie" and that she saved it when her mothers friend passed away.
I didnt know what to say so I just nodded...
What am I supposed to say? I mean, there isnt such thing as a teacup, and she works at a pet store so she should learn at least a little about the breeds of dogs SHE owns..