“‘Yes, Miss Granger? You wanted to ask something else?'”
‘Yes,” said Hermionie. “Surely the whole point of Defense Against the Dark Arts is to practice defensive spells?’
‘Are you a Ministry-trained educational expert, Miss Granger?’ asked Professor Umbridge in her falsely sweet voice.
‘Well then, I’m afraid you are not qualified to decide what the ‘whole point’ of any class is. Wizards much older and cleverer than you have devised our new program of study. You will be learning about defensive spells in a secure, risk-free way-‘”
J.K. Rowling “Harry Potter and the Order of the Phoenix”