My family and I have recently got an almost 4 month old Shih Tzu. When we collected him he was housetrained with a cat flap and we do not have one of these. We keep him in the non carpeted area of the house and he sleeps in a pen. He doesn't know how to tell us he needs to go out so we try to take him every 2 hours or so but this is a bit hit and miss. PLEASE PLEASE PLEASE can we have some advice on: 1. How to get him to tell us when he needs to go out 2. How to avoid inside accidents Thank you!