SPRINGFIELD — As a grade-school student, 3rd Circuit Chief Judge David A. Hylla was tasked with convincing the class that the British side was right during the American Revolution.When he was successful, he thought being an attorney would be a fun job he could see himself doing when he was older.Now, decades later, Hylla is finishing his third and final term as 3rd Judicial Circuit chief judge.“You never knew what was going to happen from one day to the next as chief judge and you can never anticipate the …