We as instructors need to have good communication skills when speaking to the student's. Without the students, schools would not be able to give them an education. In a sense they are the "customer". However in a buisness if a customer is upset they may tell ten of their friends. I feel that students can do that as well.
We all have been in a situation were a student feels they are right when they haven't been. Again, we all need to have good communication skills. Dealing with a student or customers can be difficult. How we react and communicate can make the difference in the outcome.
