A black, a mexican, and a white kid are in a classroom learning about nouns. The teach asks the class to pick two nouns at random and after some debate ""liver"" and ""cheese"" are selected. The teacher informs the children that they will be making sentences with these two nouns. First she calls on little Billy, the white kid, ""Billy, can you use liver and cheese in a sentence?"" ""When my father serves liver he makes it with a side of cheese"" replies Billy. ""Very good, the teach exclaims, ho…