Open the cos or sectumsempra
Or just laugh at her and breath as much air as i can at her ridiculously piggish face lol
Once a teacher actually did scold me irl in muggle school for breathing to loudly and i was so annoyed lol, i kind of argued with her... *sighs*
She may have had good intentions, but she was maddeningly strict and serious, almost never smiling or laughing, oof