Now there are two remedies.

Will you try the physical one?
Then call him out into the floor, inflict painful punishment, and send him smarting to his seat, with his heart full of anger and revenge, to plot some new and less dangerous scheme of annoyance.

Will you try the moral one?
Then wait till the recess, and while he is out at his play, send a message out by another boy, saying that you have heard he is very skillful in making whistles, and asking him to make one for you to carry home to a little child at your boarding-house.

What would, in ordinary cases, be the effect?
It would certainly be a very simple application, but its effect would be to open an entirely new train of thought and feeling for the boy.

"What!" he would say to himself, while at work on his task, "give the master _pleasure_ by making whistles! Who would have conceived of it?
I never thought of any thing but giving him trouble and pain.