A boy once saw his father puttinq some batteries in the sun. He asked his father what he waz doing. The father then replied sayinq, "I want them to charqe so that they may last lonqer bcuz they are dull riqht now". A week later at school the boy waz abused by hiz teacher for not beinq brillant. The teacher told him that he should qo and sharpen his dull brain bcuz he got zero in most of his subjects. So when the son qot home and judqinq from what his father did the father qot home and met his son sittinq in the sun, he waz surprised, so he asked for the reason bout the boy replied sayinq, "My teacher said i have a dull brain, so i want to sharpen it as you did to ya batteries".