Does your Yorkie accept treats handed to them by strangers?
Max and Teddy will not take treats from anyone outside of our family. They want the treat handed to me first. I think they are suspicious of food from other people. But bunny droppings are okay.
A post on Tenacious Little Terrier's Facebook page (Mr. N, the terrier, is a member here), asked if your pet will listen to strangers, take commands from them. Max and Teddy always look to me for approval first. Does your Yorkie do that?
https://www.facebook.com/TenaciousLi...type=3&theater