Human Body The teacher asks, "Flora, what part of the human body increases ten times when excited?" Flora blushes and says, "That's disgusting, I won't even answer that question." The teacher calls on Johnny: "What part of the human body increases ten times when excited?" "That's easy," says Johnny. "It's the pupil of the eye." "Very good, Johnny," responds the teacher. "That's correct." She then turns to Flora and says, "First, you didn't do your homework. Second, you have a dirty mind. And third, you're in for a BIG disappointment."