By availing more extra answer sheets do the students over power others in exam hall ?

During the exams, the students undergo with so many ordeals. Firstly they go on study the questions on and on so that they can attempt those which are very familiar. Secondly they would concentrate on small answers and objective questions which are easy to answer. And while doing this , when we find some enthusiastic student finished the answer paper and goes for additional sheet, we get tensed and we even think that he is over powering the class with so much ease writing of exams with great enthusiasm. Have you ever bothered about others taking so many extra sheets ?