Which rules did he break as a school boy?

As a school boy, he was more interested in things other than academics. If it started raining outside, he would think of the flowing water, and how to build a dam to block it. He thought about the flow of water within the dam, and how much of water the dam would be able to hold. He was interested only in games, running around, and playing jokes and pranks on others. He copied in class during exams. He used to get hold of the examination paper that had been prepared, and study it as he could not remember things that had been taught to him in class.