Hi, I am the proud owner of a 1 1/2 year old male Blenheim Cavalier named Louis. We adopted him from a breeder when he was 6 weeks old. He still is not fully potty trained and is very hard to dicipline. Are Cavaliers just stubborn? We had him in puppy pre-school at 6 months old but that didn't seem to help. Does anyone have some advice?