What happened when tj and the simmses go to the barnetts store?

When T.J. and the Simmses go to the Barnett store in "Roll of Thunder, Hear My Cry," T.J. tries to impress the Simms brothers by showing off, but the situation escalates when they encounter racial tension. The Simmses, feeling emboldened by the presence of T.J., confront him and display their hostility. This encounter highlights the injustices faced by African Americans in the story and showcases T.J.'s vulnerability amidst the prevailing racism. Ultimately, it serves as a critical moment that deepens the conflict and themes of the novel.