I didn't really have trouble pad training Pepper. He'd have an accident only sometimes, and stuck to the pad also in other places like my work or hotel. BUT when I tried to switch to the outside, he doesn't go outside. He holds the whole day until we get back to his 'beloved'

pad. Now I tried to put the pad outside to give him the idea of actually pottying outside but I'm not sure how successful it will be. He's not tiny anymore and it would be easier if he went potty outside. I would have dont it differently if starting potty training again... lol