Quotation
Flitwick’s spell hit the suit of armor behind which Snape had taken shelter:
With a clatter it came to life. Snape struggled free of the crushing arms and
sent it flying back toward his attackers; Harry and Luna had to dive sideways
to avoid it as it smashed into the wall and shattered. When Harry looked up
again, Snape was in full flight, McGonagall, Flitwick, and Sprout all thundering after him. He hurtled through a classroom door and, moments later, he
heard McGonagall cry, “Coward! COWARD!”