Here recently my puppy has put it in his mind that inside is for potty and outside is for play and nothing but. I had him pretty well potty trained and trained on biting and barking until I started working and my fiance started taking care of him. Everything I've done has gone down the drain and he won't go back to the way I had him before. Any advice on how to train him to potty outside instead of inside and to stop his biting and barking? I NEED HELP!!!!