The rumbling of the voice of Hailey's father
After Hailey returns home late from detention, she enters the house where she knocks on her dad's door. As she waits out the door, she uses a simile in which she gives emphasis on her dad's deep voice, comparing its rumbling to a faraway thunder. She says: "Dad’s voice rumbled like faraway thunder, talking to the dog. Spock whined, then went quiet..."
Weed that melted stress like chocolate
Walking the halls of Belmont High alone, the narrator (Halsey) is all too self-conscious as well as ware of the other students who seem all too well assimilated into the education system. Halsey uses a simile where she compares the happiness that resulted from weed to the happiness that resulted from the consumption of chocolate: "The Honor Society officers who started their day off with a little weed that melted stress like chocolate."
Watching them drop like heavy rocks
To emphasize on the intensity of the silence and the way that she waited patiently for the seconds to go by, Halsey uses a simile in which she compares the passing of time to the dropping of rocks. The use of this style device serves the purpose of conveying Halsey's uneasiness with regard to the questions being asked by Benedetti, or rather her disinterest in answering them: "I counted the seconds, one after another, watching them drop like heavy rocks down a deep well."
Scars glowed like like fragments of a bone
After Halsey confronts her dad about quitting the job, she describes his reaction vividly emphasizing on the way that the shrapnel scars along his jaw glowed like fragments of bone in a bed of cold ash. This particular comparison enhances imagery: "Dad’s mouth tightened. The shrapnel scars along his jaw glowed like fragments of bone in a bed of cold ash."