How would you react if Trunchbull wandered into one of your classrooms?

I would be terrified if Roald Dahl's Miss Agatha Trunchbull wandered into one of my classrooms. Of course, I can't imagine this despot-like headmistress of Crunchem Hall Primary School actually "wandering" anywhere. That would suggest a lack of purpose alien to this terrifying woman's character. She would march, stride, or stomp into the classroom in question with an agenda in mind and whip in hand.
Her agenda would most likely be to root our wrongdoing, which in her book is just about anything. This is a woman who has so repressed her childhood that she claims she never even was a child. This is the woman who doles out fearsome punishments for the least misdeed, even punishing children for wearing pigtails. A former Olympic contender for throwing the hammer and javelin, Miss Trunchbull has been known to fling about a child or two. She also carries a riding crop.
Given that anything can bring down her very harsh wrath, Miss Trunchbull's entry into my classroom would not be welcome.