Sienna is absolutely adorable and I would have told that horrid woman to mind her own business and to take a flying leap! That would be the edited version
BUT......
I'm going to say something that might make upset you but here goes...........
I do not believe in mixing dogs to make puppies to sell EVER. That is not breeding for the betterment of the breed and only for making money.
Let me add....... 
I have 2 yorkie/maltese mixes that are both rescues.
They are
IMHO beautiful and I love them just the same as if they were pure bred. I'd be very upset if some moron came up to me and told me that they were weird or ugly looking.
At the same time I would never purchase a mixed breed puppy from a breeder. But this was not always my opinion, it has been learned over time with my experience with rescue and YT. Not that many years ago I would have purchased a puppy from a greeder. But my exposure and education has taught me that there are NO REPUTABLE breeders that will mix breeds to make puppies. There are way too many poorly bred dogs being sold for nothing other than greed to justify mixing of breeds. Plus the many more that are PTS daily in shelters all over this country.
Finally.......
I also have a AKC 12 lb Yorkie that people have commented that she is NOT a Yorkie. It is mean and hurtful when it is said to someone about a baby that they love.
She was purchased from a "breeder" by a friend and she IS poorly bred and not bred for fun and profit.
