But then I thought: "It is _my_ party, and I want to celebrate my birthday surrounded by people who like me in _every_ context." So I rang his doorbell, his parents let me in, and seated in their living room, with his parents present, I un-invited him to my birthday party because of his behaviour at school. When I left, he was very quiet, and I think his parents were impressed with how I handled it. They did not interfere in any way. 5/