In Chapter 3, Miss Caroline is teaching when suddenly a tiny bug jumps out of Burris Ewell's hair. The small bug scares Miss Caroline who steps back and begins to scream. Initially, the students find her reaction amusing, and Little Chuck Little informs her that it is only a "cootie" before getting her a cool glass of water. A "cootie" is simply a slang term for a small bug, in particular, a head louse. Scout goes on to mention that Burris Ewell is the dirtiest person she has ever seen. Miss Caroline finally settles down and tells Burris that he needs to go home and wash up. Burris then disrespects Miss Caroline and begins to call her rude names before he leaves the classroom.