One of my classmates happens to know more than every single teacher we have. She sits in the back and is constantly correcting or challenging what the teacher has said. She rarely says these corrections loud enough for the teacher to hear, so only her lucky classmates get to experience her vast knowledge. Last week in class we were discussing why doctors put antibiotic ointment in a newborn’s eyes. The teacher said that it is done because the mother might have a sexually transmitted disease. From the back of the room I heard Miss know-it-all say in her holier-than-thou voice, "Well, what it the woman has never had sex? She couldn’t have an STD then." Yeah, thanks for clearing that one up for us….