Hey, I'm not surprised at all. Mia is afterall one of Deb's Amazing Yorkies
I must say I am jealous though, first that you have such a well bred little girl, and second that house training is going so well.
You are so wise to go with crate training, and outdoor pottying, I wish I had done the same. My girls are 5 and 6 years old and go outdoors the most, and on pee pads part time, which leads to confusion and accidents. It is hard for them to tell the difference between a pee pad and a bath mat, or other rug, and they even potty on the door mats outside. It was a bad choice for me to ever use pee pads.