DS, also 3, has a love-hate relationship with anotehr child at nursery who is quite disruptive.
Said child has scratched DS twice, once quite badly, usually in tussles over toys apparently.
This child has some issues going on at home which I have become aware of and I know nursery are on top of it, but DS often mentions that X was naughty.
Recently DS had a few days at nursery when he was naughty, and when I aksed him about it, he said X did so-and-so(unrealted to DS' own behaviour). Then on Friday he was apparently fine, and when I aksed him about his morning, he said "X wasn't there today".
So I think although I don;t think DS likes X very much, he has possibly been copying his behaviour or perhaps trying out his own version..
A lot of his behaviour at the moment is boundary testing, i thnk, and trying to work ou why/when grownups get cross.
He said to me today quite firmly
"Mummy if you are naughty I will get very cross with you and tell you off".
As I was driving the car at teh time and not being the least bit naughty, so I did laugh..