The tell tale lunch box

There is a kid at my school who I think is so great. He is a tall dark skinned kid who is just bursting with personality. One day during loading at school. My principal called sara, the name of a girl in his class. Sara is a tiny blond haired, fair skinned, girly girl. He turned to me and in a falsetto voice said "I'm Sara" I smiled at him and said "don't you think that sara's mom will take one look at you and say " where's sara, this isn't sara" and he said in a very serious voice. "yeah especially when she sees my lunch box."