My 4 year old son started school in september and we've had a lot of back chat since. I remind him to speak nicely but it's not really helping. I hate hearing him speak like a petulant teenager! Any advice? Im hoping this will stop as soon as it's started. I understand where it's coming from-he's struggling with the adjustment to school and after been told what to do all day I think it's his way of giving it back!