What is the difference between antagonism and competitiom ?Feel free to just provide example sentences.

Antagonism is harassment with the intent to draw a reaction from someone. Competition is respectfully trying to beat someone at something. For example, competing is to play a sport or video game against someone. Antagonism is to mock someone while competing with them. Antagonism can apply to any harassment, though. If you're sitting behind someone in class and pull their hair, that's antagonism. If someone doesn't like it when you click your pen repeatedly at work and you do it near them anyway, that's antagonism. People will often cite antagonism as a defense for yelling at someone or punching them in the face.