My 2yr old daughter (who is a twin) has recently been quite mean to her sister. I have caught her hair pulling, pinching and slapping. I think it may have been because she's been frustrated or possibly jealous but I can't be sure. Her sister is more outgoing and vocal. There is no retaliation from her sister and I've never seen her lash out first.
I've tried the 'Naughty Step' and it seems to work and I've not seen any violence in the past few weeks but because I've told my 2yr old 'No' and 'Stop it', when she has hurt her sister, she now says this to me on every possible occasion.
If we are singing and she wants it to just be her singing she'll say 'No Mummy, stop it!'. Basically if anything goes on that she doesn't like she'll shout these words. It happens at least 10 times a day. I'm not sure if she knows what she's doing or whether she is just mimicking what's been said to her. Either way, it's not nice and I hope she'd not doing it at nursery to other children. How do I get her out of this habit?