This has been an ongoing issue, despite much patient (and not so patient) explanation - my DD1 just doesn't really understand about physical space - or she does in theory when we talk about it, but not in practice. At home she frequently touches us (breasts, tummies) and we tell her firmly not to, but try not to take a huge amount of notice. She has on occasion done this with family members too, but rarely outside the family. Childminder took her to meet someone new, the mother there invited DD to sit on her lap and DD1 was pulling her hair and face and poking her in the chest. I suspect this is something to do with anxiety/impulse control (we are in the very long queue for an assessment - but they wouldn't see this behaviour in that context). But I am mortified and do not know how to stop her doing it - we have tried reason, consequences (usually being removed from the situation/removal of privileges), getting angry. She knows it's not acceptable, but still does it (some other issues with boundaries, space too, but this one is the key one). She is not tiny any more and people rightly have no tolerance for it. Ideas.