I have ds (6 1/2) and dd (3 1/2). Over the last few months, ds's behaviour at home has taken a rapid down turn - speaking back, arguing just for the sake of it, total non compliance of anything we, in particular me, ask of him. Obviously, this is now rubbing off on his sister. This afternoon,they asked if they could go to a neighbours house to play. I explained no as it's neighbour's birthday party but dd took off on her own regardless and I didn't find out until she returned where she'd been. Asides from all the obvious safety issues, I'm tearing my hair out as I'm at a complete loss as to what to do with both of them and am now questioning my parenting skills and asking what I'm doing wrong. DH works long hours and oncall and as a result isn't round much to see full effect of their behaviour which doesn't help my self confidence/esteem any. Advice much needed please as I feel like walking out and not coming back...