Sometimes good intentions can be misunderstood. Once as an instructor at MMI (Motorccle Mechanics Institute) I had a student who had a pretty solid mechanical background and so was always able to answer questions I asked the class during lectures. I like engaged and motivated students, but he was monopolizing the lesson. So I did what any good teacher does, I encouraged the quieter students to get more involved and so chose this exceptional student less often to answer. Well, it seems this former Air Force mechanic took it personally and complained to school management, and I was summarily called onto the carpet. Many is the time when doing right is perceived as wrong. And you can't always count on being vindicated. No one should be surprised at this.