"Yes!"
If you are a teacher reading this, do not be afraid to be the "tricky" one. The system will pressure you to be soft. Parents will complain. Kids will cry in the hallway. But hold the line. Twenty years from now, a former student will track you down at a grocery store, hug you, and say: "You were the best teacher I ever had. You made me better."
Today, we are going to break down exactly what makes this archetype so effective, why she has all but disappeared from our classrooms, and why bringing back a little "tricky Mary" might be the only thing that saves the next generation.
That, dear reader, is the effect. She made me better. And she will make you better, too—if you survive her.