My pug/jack russell mix is 8 months old. He was 7 weeks when we got him and we immediately began training him to go outside. He learned the word potty and went to the door when he had to go. He could be left out of the crate and we were able to trust him. He has now gone completely in the other direction. You cannot trust him for five minutes. He goes outside to go and simply wanders around and is distracted by everything. He then wants to go back into the house. You bring him in and he goes in the house. I am am so frustrated and and considering rehoming him. Before I do, I want to try to get as much advice as possible.