I'm not sure why you're talking about "firing" customers. That might be the equivalent of teachers firing student's parents? Anyways, what I was trying to get at is that people working at a company choose to work there, MOST of the time they are doing something they are good at. Compare this to students, teachers do not get to choose their students from a set of applicants. Also oftentimes students do not see the benefit of being in school. I am not opposed to the study, I was only addressing the point you made about comparing a school to your company. I do not think it is a very good comparison.