"She has no friends in Gryffindor," Snape retorted, his face twisted with fury. "That was made abundantly clear to her when she was driven to flee, crying her eyes out, into a girl's lavatory and was subsequently nearly murdered by a bloody troll! Where were her valiant and brave Gryffindor friends then? Nowhere. Because she had none. They were all busy cowering, shaking in their shoes, under the common room tables."