I agree with the first one who posted on your thread who said she'd given up trying to educate people about teacups.
I get that question a lot when I am out with Copper...."Is your yorkie a teacup?" I just respond, no - he is just small.
On a good day Copper hits 4lbs...most of the time he is 3.8.
He is healthy, sweet, loveable and his size is not an issue except for making sure he is safe.
I don't even try to explain the teacup thing anymore...
Would you like a cookie or a scone with your tea?