AxisMundi
E Pluribus Unum!!!
So, what you're saying is that if someone is a clergy, that they will preach no matter where they are. I don't believe that for one second. There is always a chance that certain preachers would, but most people can tell one job from another. Just because has a second job as a preacher, that doesn't mean that he or she will preach during the classroom time.
And if, hypothetically, said clergy does indeed completely seperate their religious endevours from their teaching career, and a student approachs said clergy for spiritual advice, a conflict of interest arises.