Unless Lin Jin was blind, it was impossible for him to not know what had transpired.
He turned to Wang Xin, intending to ask if anything of this sort had happened in Heavenly Spiral Academy before. And if it did, how would they resolve the issue? Understanding Lin Jin's intention, Wang Xin whispered to him, "Appraiser Lin, um, this rarely happens but there were such instances. Basically, such conflicts only exist between rivaling teachers. However, if one side decides to back down, there won't be any major conflicts."
So something of the sort did happen before.
Clearly, Lin Jin's counterpart was provoking him. Perhaps he was trying to probe Lin Jin's willingness to back down.
That made things easier.
Logically speaking, not only was Lin Jin new but he also just got his Rank 4 qualifications yesterday, so even if someone were to provoke him, he should be the one backing down.
There was, however, one other principle.