One, you didn't insult Captain Kurotsuchi to his face unless you were just plain dumb. Stupidity in the twelfth division was dealt with in a Darwinist fashion and, thus, if you acted like a dumb-fuck, you likely didn't know until you became a splatter on the division floors. This happened more than some would think, keeping the population of idiots in the ranks fairly low.
Two, you didn't just get tea for yourself. If you got up to get tea for yourself, you had best get tea for everyone else in the room or you'd find yourself getting back up to get it. Most of the members of the department were pretty sure their project was the most important in the room and therefore if you had time to get up and get yourself some tea, you could certainly manage to get them tea as well. There was no 'or else', it was just something you did.
Three, you never knocked, which was one of the major problems a lot of the twelfth division had with the other divisions. While a surprise knock on a door in the third division could maybe cause an extra ink blotch or two on a report, a knock on a door in the twelfth? Well, in this case, it meant three weeks of intricate work patiently creating an original facial structure had just been ruined by a jolted scalpel.
Akon turned around, twitching just a bit at the intruder, an unseated shinigami from the eighth division. He set down the scalpel with an irritated glower, "What did you want?"
He knew that behind him, as the flustered shinigami began to hastily go through his report, a raised cheekbone he had just given perfection to was being lost, sinking now that it's structure had been penetrated. It wasn't as if what the young shinigami was saying wasn't important. In fact, in the eyes of any other fifth seat, this would probably would be the landmark of their day, but as he leaned back against the gurney, fingers of his left hand already moving back to idly assuage the damage that had been done, Akon honestly doubted that any of the information being given was worth his time or energy.
Well, that was until the report brushed on a hollow ability he had never heard of. His fingers stopped their movement and he quirked a grin that might have scared some of the jumpier shinigami, interrupting the steady flow of information. "Go back to that part about the third hollow," he pressed, "How much more do you have on that?"
It was beginning to look like those three weeks of work hadn't been entirely wasted at all.