Well as for me. Sometimes people might get the impression I am a nice guy. Other times they might get the impression I am a total arsehole. I think this is true of many if not most people. Even the biggest jerk can come off as a nice guy in certain situations. And even a truly good person can come off as a total jerk in certain situations. I am lucky if I bat .500. But I have always said there is a distinct difference between a "nice" person and a good person.