It's wrong to fight with your co-workers.
Michael and Matt are working together on a project, and they disagree about what direction the project should go.
Michael wants Matt to do things Michael's way.
Michael talks to Matt about the benefits of doing things his way.
Michael thinks Matt is being stubborn and punches him to try and get him to agree.
Matt agrees and Michael and Matt work together to complete the project.
Matt calls human resources and Michael gets fired.