There is a child at school (Reception) that screams every morning not wanting their parent to leave, invariably setting a few others off crying. A TA usually takes them away into another room. My son is becoming upset at this, wondering where they are going and why they are upset. I’ve explained that they are missing their mummy and DS decided he was going to miss his mummy as well. I don’t want this escalating. Any advice how to handle it please?