[Yorkease]

I have had a few potentinal new owners for my pups, but after looking into their background and finding out they are breeders of really tiny Yorkies I told them I already sold my small baby boy. This lady have so many different breeds of dogs and other animals like monkeys, birds, & cats. I didn't feel like she could have cared for my pup the way he needed and deserved.
I am looking for the best way to discourage these people and to tell them "Not in a million years will you ever get any of my pups!"

In what way do you do tell people that you do not want to sell a pup to them? Thanks.