" Women, in short, have been trained to believe that they’re not allowed to be angry.”

“Trained,” Katherine said loudly. “You’re always talking about training, like we’re dogs or something.”

“It’s not polite to raise your voice,” I said, and she immediately hunched and blushed. Suze frowned. “Don’t frown,” I said to her, “you’ll get wrinkles.”

Silence. "

― Nicola Griffith , Always (Aud Torvingen #3)