They can't be doing that, because it's too hard for them, so they can't be doing that and you're lying, so there, nya.

"Someone started the rumor that I beat my students into behaving.  When my second-graders were studying a science unit about dinosaurs, I posted their papers on the bulletin board outside the class, and some teachers spread the word that I had made up those papers myself.  They said it was impossible for my students to write about the brontosaurus and the pterodactyl and the tyrannosaurus when their own classes were still struggling with the first thirteen words in the basal reader.

"The harassment kept up.  Twice I found hate notes in my school mailbox: 'You think you're so great.  We think you're nothing.'  They were signed 'A Colleague.'

"Some days, standing at the blackboard, I felt dizzy....I felt like I was dying."--Marva Collins' Way, by Marva Collins and Civia Tamarkin