Have you noticed, how, if your kids pass exams everyone says they have got their brains from their parents,but if they fail their exams everyone says they are stupid......?

Pat had the reputation of being the most argumentative boy in school. One day the teacher was furious again at being contradicted by him and yelled-'That's just too much from you!Who's the teacher here-you or me?'
'You,sir.'
'Then why are you talking like an idiot?!'