Ds is in reception. A mum rang up to arrange a play date, I don't know her, I don't know her ds, though my ds does. I invited them for tea. After ten minutes she got up and said she's be back in an hour. I was surprised but wanted to be polite and said ok. I spent the next hour and a half trying to entertain her ds, who seemed bewildered and withdrawn [he is only just 4] and when she came back and asked if he'd had a nice time he shook his head. She said 'what happened?' I just said he'd been a bit quiet. I really don't feel comfortable being put in that position with a child I don't know. Am I being silly?