In ch.9, wht character trait does Lee introduce by having Atticus shoot the dog, tell the children to stay away from it ,then return to the office?

In Chapter 10, Atticus Finch shoots Tim Johnson, the bird
dog belonging to Mr. Harry Johnson.  In my opinion, Harper Lee introduces humility as a
character trait in this chapter.  Because Atticus takes no pride in his talent as a
marksman, discourages anyone from commending him for his ability, and does not revel in
what he has done, he shows a great deal of humility.  The fact that Atticus has refused
to use his gift unless absolutely necessary reiterates the fact that humility is one of
his inherent traits.  Later in the novel, humility plays an important role in the
approach Atticus takes in representing Tom Robinson in court.