What happens to Burris Ewell on the first day of school?

Burris Ewell is sent home by Miss Caroline on the first day of school because of a "cootie" in his hair.  Miss Caroline is a new teacher, and she is unaccustomed to Maycomb and the different people who live there.  She notices something crawling in the hair of one of her pupils, Burris Ewell:

"It's alive!" she screamed.

The male population of the class rushed as one to her assistance...

Miss Caroline pointed a shaking...

Burris Ewell is sent home by Miss Caroline on the first day of school because of a "cootie" in his hair.  Miss Caroline is a new teacher, and she is unaccustomed to Maycomb and the different people who live there.  She notices something crawling in the hair of one of her pupils, Burris Ewell:

"It's alive!" she screamed.

The male population of the class rushed as one to her assistance...

Miss Caroline pointed a shaking finger not at the floor nor at a desk, but to a hulking individual unknown to [Scout]...

Miss Caroline said desperately, "I was just walking by when it crawled out of his hair… just crawled out of his hair-"

Little Chuck grinned broadly. "There ain't no need to fear a cootie, ma'am.  Ain't you ever seen one?  Now don't you be afraid, you just go back to your desk and teach us some more" (To Kill a Mockingbird, Chapter 3).

Miss Caroline is greatly disturbed by what she sees in her student's hair.  She speaks to Burris about the matter.  She suggests that he leave immediately and wash his hair with lye soap and kerosene.  Burris informs his teacher that he has already "done [his] time for this year."  Another student tells Miss Caroline that Burris always comes to the first day of school and does not return until the following year.  Burris announces that he has done this for three years.  To Miss Caroline, this fact is shocking.  To the other students, this is normal for a member of the Ewell family.

Burris is ready to leave school, but Miss Caroline tells him to return to his seat.  He refuses, and Miss Caroline relents.  She tells him to leave, which Burris does with a snort.  Before he exits the room, Burris speaks rudely to Miss Caroline, even calling her a "slut."  His words make her cry and he leaves.