Dropped my 4 year old at nursery this morning as usual. I heard a member of staff (couldn't see her but she wasn't one of the usual teachers) say 'good morning DS, how are you?' To which he replied 'Morning, I'm good!' She then said 'Your always good aren't you? Do you ever feel sad?' I found this really quite a strange thing to ask my son as he walked through the door. He hadn't even taken his coat off yet! What was she wanting him to reply to that? Am I over thinking this?