[LuvmyOzzy]

So I have had my yorkie for almost a year and I am so attatched to him so this worries me. He wants to take off out the front door on me. This is my first yorkie so I don't know if this is something they like to do, I have been working with him to stay but he is so fiesty that just when I think he has got it he races out the door. It is freezing right now so he doesn't go far but when it is warmer, well it scares me to think of something happening to him.
So my question is are yorkie's never to be really trusted or keep working on the stay command.