I remember the first time my dog did his business inside, my dad whacked him. Never did it again. He didn't badly hurt him, but the dog learned his lesson. Sometimes he'd leave a little bundle near the door, because he couldn't get out. So everyone here has the responsbility of making sure the dog goes out. He scratches at the door when he needs to go; he lets us know. He hasn't relieved himself or done his business in the house for ages.