Dwight Schrute bobble head. (Getty Images) Every unit has a Dwight. He’s overzealous, obsessed with regulations, quick to issue commands, and just paranoid enough to think the coffee pot is bugged.

The president of the nation’s largest teachers union is being mocked for a “totally unhinged” speech, with critics comparing the appearance to an over-the-top scene from “The Office.&#8… ...