My favorite part:
While Davidson was "trying to give a lesson on shading," the troublemakers were "whacking each other with rulers, throwing paper across the room, getting up and walking around."
They blocked the door when he tried to close it, talked over him when he tried to teach.
The first time it happened this semester, he summoned security "four times during the period and help never came."
Day after frustrating day, he said, the scenario replayed. And when he sought support, administrators met his request with a checklist: Have you contacted their parents? Have you encouraged the students? Have you treated them with respect?Yes, that's it! Just treat them with respect and everything will be swell. Why, you'll have them eating out of your hand. Or eating your hand! I'm not really sure which.