You'll have to spend a lot of time training and most likely bring a trainer in too. There really is no easy answer here. You can try the squirt bottle of water, pennies in a can, etc. but they don't work for all dogs.
The invisible fence has some flaws, 1) doesn't keep other animals out/these animals can easily hurt a Yorkie, 2) obviously doesn't keep Yorkie in and thus is a totally unsafe system, 3) you are using shocks to train which, in the opinion of a lot of us here, is not okay, 4) Yorkies shouldn't be outside unattended in most circumstances anyway. So between 8pm (or whenever it was) and 3am, he ran around the house barking? What was done to stop him?
__________________ Crystal  , Ellie May (RIP)  , Rylee Finnegan  , and Gracie Boo🐶 |