In The Watsons Go to Birmingham, on pages 138–140, in chapter 10, Kenny asks for a second glass of Kool-Aid even though it tasted like "grape medicine" because it was his turn to eat his momma's peanut sandwiches. He says that she would layer the sandwiches with so much spread that he needed something to wash it down with "in case you start choking."
The Watsons—Kenny, Joetta, Byron, and their parents—are taking a road trip from Michigan to Birmingham, Alabama in their "brown bomber" to see their grandma Sands and deliver Byron to her. Byron, Kenny's older brother, has been misbehaving and hanging out with the wrong people. They are hoping the strong and religious grandmother Sands can straighten him out.
When they reach Birmingham, however, they find themselves in the middle of a race war. At one point, Kenny thinks his sister is one of the victims of the 16th Street Baptist Church bombing. Fortunately, he finds her safe at home.