Tommy and John were hot and sweaty as they sat outside the principal's office. Dirt smeared both of their faces, and they could
hear their teacher's voice as she gave Mr. Jones her account of
what had happened. Tommy sneered at John, and John returned
the angry glare. As Miss Brown lefdmr. Jones' office, the boys
hung their heads so they wouldn't have to look her in the eye.

From this paragraph you can infer that