If you’re still reluctant to stand up, this is the time to remember that your working conditions are students’ learning conditions. One of the things students learn at school is how grownups function in the workplace. And everything else they learn is colored by the atmosphere of that workplace. What do you want your students to learn? And what kind of atmosphere do you want them to do their learning in?
Source: CURMUDGUCATION: Making Trouble (or “Other Lessons of West Virginia, Arizona, et. al.”)