The underlined phrase confusing

"He got all the other kids to wait for her on the playground, or in the cafeteria, or in the bathroom, and call her “Stupid!” or “Ugly!” And Trisha began to believe them.She discovered that if she askedHe got all the other kids to wait for her on the playground, or in the cafeteria, or in the bathroom, and call her “Stupid!” or “Ugly!” And Trisha began to believe them.She discovered that if she asked to go to the bathroom just before recess, she could hide under the inside stairwell during the free time, and not have to go outside at all. In that dark place she felt completely safe."
I have two questions to ask about the underlined phrase.1. Is the underlined phrase grammatically correct? Does it need a direct object like the teacher?2. It doesn't use the direct object the teacher on purpose. Is it because, otherwise, it will get the readers confused making them wondering if the TEACHER went to the bathroom or not, which is not compatible with the sentence followed? Thanks.