My close friend is a very dominant (DISC) person. Last time, he bashed my ex-high school when we hang out with some friends. He had valid points, and I had admitted it, but nevertheless, I asked him to stop because I take pride in my high school's experience.
He refused to stop, saying that he's just saying the facts. Note that this argument began because one of my friends is still enrolled there. All of my friends respect this guy, so they didn't do anything. When he continued to "state the facts" again, I walked out.
This might happen again, as we regularly hang out with this circle of friends regularly. I would like to stop him from bad-mouthing my high-school, when I'm with him.
How to convince my friends to drop this particular topic when I'm around? He is a respected figure, so I fear that they will just dismiss my request when I ask them.
Note: DISC is a type of personality test and stands for Dominance, Influence, Steadiness, Conscientiousness. A Dominant DISC personality is defined as: Sees the big picture - Can be blunt - Accepts challenges - Gets straight to the point