My daughter, who's nearly 2 and a half, bit another child at nursery today... I'm pretty mortified. She went through a brief biting stage at around 18 months, but this was generally when she was very excited/happy and it was only me and my Mum that she bit. Nursery staff said they thought it was because another child had a toy that she wanted, I don't think this is very likely, she's not at all aggressive, but I guess it's possible... She's an only child, but spends quite a lot of time with friend's kids etc. Nursery staff have also commented that although she's pretty compliant, she doesn't appear at all 'bothered' when told off - just smiles, carries on chatting etc... Any wise words or advice on how to nip this (no pun intended) in the bud?