What are some events in To Kill a Mockingbird that Calpurnia explores?

Calpurnia is one of the quieter characters when it comes
to expressing her opinions about events in Maycomb. She has little to say about the Tom
Robinson trial (though we can assume that she believes him innocent, calling the
Robinsons "clean-living folks") and, though she is better educated than most of the
black townspeople, she seems to "know her place" in Maycomb's white-dominated world. She
expresses her sentiments toward civility and manners strenuously when Scout puts down
her guest, Walter Cunningham Jr., for pouring syrup on all of his food. She relates that
Mr. Radley was "the meanest man ever God blew breath into," and she knows a mad dog when
she sees one, alerting the neighborhood of the presence of Tim Johnson. She defends Jem
and Scout against Lula, who doesn't appreciate white children attending her church; and
she explains to Scout why she speaks one way in the Finch home and "colored-folks' talk"
at her church. Cal didn't think it was "fittin' " for the children to attend the rape
trial, and she told Atticus how much the black townspeople " 'preciate what you did" for
Tom.