This danger may be avoided in the following manner.

State publicly that you will not appoint any to office who are not good scholars, always punctual, and always prepared; and when any boy who holds an office is going behindhand in his studies, say to him kindly, "You have not time to get your lessons, and I am afraid it is owing to the fact that you spend so much time in helping me.

Now if you wish to resign your office, so as to have more time for your lessons, you can.

In fact, I think you ought to do it.

You may try it for a day or two, and I will notice how you recite, and then we can decide." Such a communication will generally be found to have a powerful effect.
If it does not remedy the evil, the resignation must be insisted on.