I am a single mum with a young son. We moved out of our house a few years ago partly because there was a lot of violence going on in a neighbour's house, including an attempted murder and domestic violence. The neighbour's little girl (primary school age) used to come round sometimes just to hang out/ chill out. A couple of months ago I couldn't believe it when the same family moved into the street where we now live. The little girl wants to come round again, but I just don't want any links whatsoever to the family. It would be harsh not to say 'hello' to her any more and to tell her not to knock on our door but I think it's what I need to do - I need to protect my own family and can't really offer this girl any help. Social services are involved but little seems to have changed, from the noises we hear etc. What would you do?