Miss Scalapino punishes Francisco for no fault of his, and since Francisco doesn’t know any English, he is unable to defend himself. Even worse, Miss Scalapino forces Francisco to return the coat to Curtis, even though Francisco treasures it, since it is the only coat he has. This upsets and humiliates Francisco, and he seems to wish that he, too, could retreat from the chaos of school and sleep—just like the caterpillar is safe and isolated in its cocoon.