Its so reassuring to read everyone's worries because I am glad I am not the only one out there who worries about their Yorkie. It is also true that the more experience you are and the more you know, you worry a little less but I don't think you can stop worrying all together. I also keep checking and rechecking the gas stove and if the door is closed and locked properly before I sleep and before I go out just to make sure the home is safe for him. I also have him upstairs and block the stairs with a babygate so that in the event that I didn't close the door properly, he'd still be contained upstairs and do not run out. Also, if I see a big dog coming from far I will cross the street.
But we do have fun time as well when his Yorkie friends and his small friends visits lol that is fun! I guess worrying about him is just part of life as we love him that much