In chapters 15/16, what are some ways that Jem and Scout make Mr. Cunningham stand in Atticus' shoes?

During these chapters, it seems to me there is really only
one way Jem and Scout make Cunningham stand in Atticus' shoes. Scout and Jem interrupt a
late night event between Mr. Cunningham and Atticus. The event is a sort of altercation
that Mr. Cunningham wants to unleash on Atticus. But, because Scout demonstrates her
natural and sincere childhood to Mr. Cunningham by talking about Mr. Cunningham's past
problems (which remind Cunningham of Atticus' prior help), and talking about his own
child, she helps Cunningham stand in Atticus' shoes. She makes Cunningham realize
Atticus only does what he does to provide for his children. This is the dream of every
father.

Cunningham may very well have shared this
experience with one of his relatives because by chapter 22 and 23 we learn that someone
with Cunningham background was on the jury. Atticus puts together the fact that someone
also took considerable wearing down on the jury. Thus, Atticus relates their experience
at the jail that night as noteworthy.