In chapter 8 of "Roll of Thunder Hear My Cry," Cassie Logan has a plan and she works it to perfection. She finally gets even with Lillian Simms for the insult in Strawberry. She sucks her in, learns all of her dirty little secrets, and then beats the fire out of her. Cassie threatens to tell all she knows if Lillian mentions the fight to anyone.
This is also the chapter where J.T. is failed by Mrs. Logan for cheating on a test. J.T. gets revenge by going to the Wallace's Store and tells everyone who will listen that Mrs. Logan is teaching things that shouldn't be taught. He tells them that she failed him on purpose because she didn't like him. Some of the leaders of the school come to visit and sit in on Mrs. Logan's class. When they question what she is teaching she says what she is adding to the children's education is "not included in the books." She is told that she can just stop teaching and "go home and write her own book." She is fired from her teaching job and this is a financial hardship on the family.
When J.T returns to school no one will speak to him or have anything to do with him because of his behavior and his lies that got Mrs. Logan fired.