Let's say an enducated well known black man, decided to be extemely rude and vicious towards a random person?

Like an interviewer from a show? For example if they were on numerous TV interviews and were calm, happy and articulate, but then a certian interviewer shows up and then they get extremely rude and nasty towards them. How would this look coming from the viewer's standpoint, and what would people most likely think about this? Just a random question I decided to ask.