I am going to tell you a story that I experienced in the military. One day, I was having lunch with my junior comrade. We belonged to the same platoon, and both were Corporals. A sergeant from another platoon came to the junior comrade, and began to provoke him. The sergeant was getting a bad reputation in the company. While hearing their argument, I realzed that they had had a trouble with each other before, and the comrade had already explained to the sergeant that he (did/had done) nothing wrong. However, the sergeant was still angry. He kept hollering at the comrade, and the comrade **