Harry: Professor Trelawney
Professor Trelawney: He will return tonight. Sorry? Tonight, he who betrayed his friends, whose heart rots with murder shall break free. Innocent blood shall be spilt and servant and master shall be reunited once more... Oh! I'm so sorry, dear boy. Did you say something?
When Harry returns a crystal ball to Professor Trelawney's class she comes up behind him and touches his shoulder, causing her to act as a medium. She suddenly snaps out of it. Harry, petrified, hurries out.