He is driving me mental! He constantly screams and shouts, runs about the place and generally causing me a major headache every time he is home from nursery! He becomes really clumsy and accidentally hurts his sisters (2 and 6 months). I make him calm down on the step outside but this is happening every day and he is also constantly ignoring us. We've started a reward chart so he'll start listening to us but feel I have to shout at him all the time!! Help!