#mcgonagall edit

"Harry witnessed Professor McGonagall walking right past Peeves who was determinedly loosening a crystal chandelier and could have sworn he heard her tell the poltergeist out of the corner of her mouth, "It unscrews the other way.”"

“we teachers are rather good at magic, you know.”

“‘Potter, use your common sense,’ snapped Professor McGonagall, with an abrupt return to her usual manner. ‘You know where she comes from, you must know to whom she is reporting.’“