It can create a lot of tension. For instance, Harry might start to act independently, which could lead to unforeseen consequences. He could go off on his own missions, putting himself in more danger than if he were with the Order.
His anger could also cause a rift within the Order. Some members might side with Harry, feeling that he has a point, while others might think he's being too impulsive. This division can make it harder for the Order to function effectively against Voldemort. If Harry is angry, he may not share important information he has with the Order, which could be crucial for their overall strategy.
It could lead to a lot of conflict. His friends might try to reason with him, but if he's too angry, he might push them away. This could split their group apart, creating new alliances or just leaving Harry isolated for a while. His anger can also attract the attention of the wrong sort of people, like those who want to use his emotional state for their own gain.
Ginny's anger could make Harry realize his mistakes and try to make amends. This might strengthen their relationship in the long run as they work through their issues. However, in the short term, there could be a lot of tension and arguments. Ginny might also start to question whether Harry is really the right person for her, and Harry could start to feel insecure about their relationship.
Naruto's anger can inspire other characters. When they see how passionate he is about a certain cause due to his anger, they might be motivated to join him. For example, if he's angry about the mistreatment of a group of people, his anger can inspire his friends to fight for justice alongside him.
Their relationship could become strained. Ginny might start to question her love for Harry. In some fanfics, she could even consider leaving him. This would put a lot of pressure on Harry to fix things and make amends.
In some fanfictions, Gohan's anger might fuel a rivalry between them. They could compete in various ways, like in battles or in winning the respect of the public. This rivalry could add a lot of drama to the story and change the dynamics of their relationship completely.
On the other hand, Naruto's anger could also be a wake - up call for Boruto. If Boruto respects his father, seeing Naruto angry might make him realize his mistakes and try to change his ways, which could ultimately strengthen their relationship as they work through the issues.
It could strain their friendship. Naruto might start avoiding Sakura, which would make her realize she's done something wrong and try to fix it.
On the other hand, the anger could also lead to a more open and honest relationship in the long run. If Gohan gets mad and finally expresses his feelings, Chi - chi might realize her mistakes. They could then work together to build a better relationship based on mutual understanding. For example, Chi - chi could give Gohan more freedom and respect his choices more.
It can create new plot twists. For example, if the snake has a hidden past or a connection to a dark force, it can lead Harry into unexpected and dangerous situations.
His disobedience can add a lot of drama to the plot. For example, if he disobeys a prophecy - related instruction, it can create a situation where the outcome of the story becomes very uncertain. The other characters will then have to react to his actions, and this can cause a chain reaction of events. Maybe his disobedience makes an ally turn against him, which then divides the forces that were supposed to be fighting together.