8 year old DD came home from school today and said that a boy in her class had said to her "boys go to college to get some knowledge, girls go to Venus to suck a penis". She told him it was horrible and sexist, he said it wasn't and was funny. My immediate reaction was to want to say something to school, but DP thinks I'm overreacting and that the important thing is that DD can tell us and knows that it's not ok. Teenage DS suggested saying something to the parents. WWYD?