It's wrong to try to get even with people
During class Bobby knocks off Shane's books from his desk and laughs.
Shane wants to make Bobby aware that what he did was not okay.
Shane walks up to Bobby and tells that his mom would not approve of what he did.
"Shane throws Bobby's books out the classroom window while saying ""reap what you sow"" to him."
Bobby apologies and asks Shane not to tell his mom on him.
Bobby stands up and punches Shane in the nose.