Princess Maddy rules the roost in the Porters household. She is a nine year old who tantrums like a two year old if she doesn't get her own way. The whole family is treading on eggshells. Mum Hayley treats her like a baby: choosing her clothes, helping her shower, brushing her teeth and cutting up her food for her. Maddy even has to be bribed to take a shower. Tantrums, which can involve biting and scratching, sometimes last for hours - with mum being the main focus of Maddy's outbursts and physical aggression. Hayley's first child from a previous marriage died before he was two. Supernanny soon realises that this is why Hayley's been wrapping Maddy up in cotton wool.