Today at lunchtime my son was called fatty by a friend in secondary school who he has known for a long time. My son got up from the table and a group of them followed and carried on calling him fatty . I feel so sad about this and angry kids are so cruel. What should he do . Should I say anything to his dad who I know well. He is a bit overweight which we are working on but he now does not want to go into school . He has lunch with them normally and he is supposed to go to their party in a few weeks time . Any advice thank you x