I just reread your post. What do you mean you can't stop them from wanderin in? Of course you can! Put your foot down and tell them which room they must stay in or get a baby gate. My children are only allowed out of the toyroom/living room to go to the bathroom or when I call them for a meal. They must all stay in the same room for safety reasons, so that they aren't wandering all over the house. They do wander out once in a while when I'm cooking, but I tell them to go back to the toyroom and they do.