Mrs. Krabappel: Well, children, our new ultra-hard PostCherfect chairs have arrived. They’ve been designed by eminent posturologists to eliminate slouching by

Mrs. Krabappel: Well, children, our new ultra-hard PostCherfect chairs have arrived. They’ve been designed by eminent posturologists to eliminate slouching by the year 3000. Martin: Mrs. Krabappel, I’m having back spasms! Mrs. Krabappel: I know they seem a little uncomfortable right now, but eventually your bones will change shape.