This is a footnote, as it were, to my post "How would a fool do it?"
My two colleagues and I were giving the final English-language exam to students earlier this month. One student who had been having serious problems (she had failed the exam twice) had still been struggling in the exam preparation course with my colleague Joyce. Shortly before the exam, Joyce made a surprising suggestion: "Write what you think is a bad essay." So she did, and when we marked it, we thought it was fine!