You shouldn't use the n-word because it offends black people.
Ron is in a big fight on twitter with a black person.
Ron wants to escalate the argument.
Ron decides to tell the person that he has no respect for him.
Ron decides to call the person he's arguing with the N-word.
The person is offended and insults him right back, and they continue.
Other folks see the argument on twitter and report Ron to his manager and get him fired.