DD2 is 20 months and has always been lovely, but very lively. She's going through yet another spell of total naughtiness. I know some say that they aren't being naughty at this age but you can see that as she's being told to stop something or whatever, her eyes are looking for the next thing to demolish, throw etc. I've tried ignoring it, distracting her, telling her off, putting her in her room, some of which occasionally works but more often than not it doesn't. She throws things, screams, pulls DD1's hair and attempts to hit. I'm now starting to wonder if perhaps the juice she's drinking is having something to do with it but I don't really know much about the effect it can have. Today I've decided to offer diluted fresh apple juice in a bid to try and find out if it is her current diluted squash. Can anyone shed any light on whether they think that her juice could be the problem (she has a good diet), whether the behaviour i've described could be a result and tips on what to do next. DD1 was never like this and it's been quite hard work on and off for a while. Both me and DH feel like we've failed her for some reason.