Kaien nodded, he knew how bad these sorts of sparring sessions can be. Shunpō'ing back to his spot on the roof, which effectively doubled as his quarters, he pulled out a book and began to read. 

Unfortunately, The mind which feels active isn't always inclined to just stay in one spot. It wanders. 
His mind was no different, as it drifted through his year in Eleventh Division. He had (unwillingly) been drawn into the feud between 11th and 4th, and as the arguments had increased, the pranks had started. At first it had been low level stuff, easily tolerated, if one simply ground their teeth and bore it. Then, came the intolerable. Kaien had been on the receiving end of a prank which had disastrous results. 

One of the Squad 4 pranksters had not known about the ability of his wrappings to hold his rage induced tremors at bay. They had switched his wrappings out for normal pink cloth and as a result his whole body had literally been shaking with rage. Of course, he was always angry but the tremors he could not control. So he had tracked down the prankster and broken his arm in five places. 

There were other things too, if he could think of them. But his mind was like a flickering candle; jumping from thought to thought. Sixth seat. Kaien thought back to how he had taken the news of his promotion. The night was unclear as he had attended one of Squad Eight's "Tea parties." He, like a fool, had expected actual tea, but in the end, a sake-spiked concoction was what he received.