I believe its because the people didn't like it.
Answer:
The way Okonkwo refers to his banishment was that he “…had been cast out of his clan like a fish on to a dry, sandy beach, panting.” This pitiful image shows Okonkwo's personal disgust, comparing himself to a lowly creature like a fish
Explanation:
It intensifies the conflict.
A complication adds to the problem of the story. The stories problem is the conflict. Many times there is more than one complication. When labeling a plot line for a story, the complications can be found in the rising action. This takes place between the exposition and the climax. The exposition of a story introduces the characters, setting, and conflict. The climax is the pivotal point in the conflict. The character can never return to the way things were when the story started out. Something or someone has been irrevocably changed.
I would say arriving to class right before the test is the answer. You should arrive to class before it starts so you can ask questions, get yourself prepared, and calm down before your test. Arriving just as it starts means your rushing, and can therefore not prepare yourself for the big test. I hope this helps!