Jack was a rescue 13 years ago. We had Sally Sue, our yorkie, for 16 years and Jack sat vigil with her for two more years. While Sally was guilty of making a break for it when the front door opened, Jack says with me. All the time 24/7, he's where I am. So I've never trained him to do anything else. That's all I need is for him to stay with me. He is quite brave and social around any other dog, no matter the size and how many of them are around. One thing I've never broken him of: stealing food wherever he can get it. he'll upzip a guest's backpack and eat their fruit roll-ups! always starving, so it's hard to keep his weight to 10lbs. mostly we're successful. he'll snip at little children who want to squeeze him, so I always caution kids that if he goes under a chair for a time out, let him be. He's been the best little dog ever. He's even a rockstar at my Bark and Brew Event, which has wiener dog, small dog, and special needs dogs races. we had retail merchandise made of his image. cups, bugs, t-shirts. he's just too cute. We never would've guessed pom. After DNA i can see it. We always joked that he was half chihuahua and half javelina!