Answer:
Our Fearless Leader
In this chapter Melinda refers to herself as "Errant Student." ("Errant" means "one who errs, makes a mistake, screws up.")
Anyhow, the bell has rung, and Melinda's hiding in the bathroom waiting for the mean kids and school personnel to clear out of the hall.
She looks out the door and sees Principal Principal (the principal) nab another "errant student" (7.1).
Somehow, this tricky student manages to gets away without a demerit. Principal Principal looks confused about how this has happened. This makes Melinda laugh.
Explanation:
Hope this helps =)
