What's not going to happen? The Dog needs to know who's boss, don't reward the bad behavior with treats, if the dog does something that you want it to do, give it a treat, it will soon associate the treat with good behavior, once it gets the hang of doing whatever this thing is that you've been rewarding it for, stop giving the treats and it should keep the behavior up.
If a dog ever bites me I hit it on the nose, first of all it will back off, secondly it wont do it again.
That's just a ridiculous way if disciplining a dog (the smack on the nose), firstly if the dog is aggressive it can and probably will retaliate and try an assert dominance with a bite, secondly if the dog is nervous/insecure you will just make the problem escalate and make things a whole lot worse.
To the OP, whats the actual behaviour?, is it aggression or just bountiful playing or boisterous? or is it just chewing things and running amuck?.
Not a fan of little yap yap dogs lol but she is quite cute