Help! This pas summer we adopted a Corgi female, who is now 2 1/2 years old. I think I know now why the previous family didn't want her. She is not very well potty trained, and she is a bit obstinate about coming when she is called. I have never really had housetraining difficulties before, but most of my dogs have come to me as puppies. Does anyone have any advice on re-training her? Should I go back to a crate as if she were a puppy? She is otherwise a sweet little thing and wonderful with the kids, so I really want to give her every chance.