The little girl I look after has changed from quite a sweet natured thing into a little horror. She'll be 3 next month and she has absolutely no concept of being told 'no' she will whine, cry, scream for mummy/daddy if she doesn't get her own way. I have tried everything, ignoring her, naughty step, overly praising good behaviour, taking away treats, star charts etc NOTHING WORKS. Never in my 8 years as a nanny has a toddlers behaviour troubled me so much I also don't feel the parents support me too..