BOY. If you multiply forty-two apples by six pounds of beef the answer’ll be mince pies, won’t it?
TEACHER (to scholars in seats). Class, can two concrete numbers be multiplied together?
CHORUS. No, sir!
BOY. I don’t see anything concrete about apples, or beef either.
GIRL. Does the Isthmus of Panama connect the north and south pole?
TEACHER. Look at your map and see.
GIRL. Does s-l-o-u-g-h spell slough?
TEACHER. Yes.
GIRL. Then c-o-u-g-h spells cow, doesn’t it?
TEACHER. No, that spells cough.