Is it appropriate to kill a "mad dog" but not a mockingbird, just because killing a dog isn't a written in the bible as a sin? When Jem and Scout are out in the neighborhood with their new air guns, Jem notices a dog walking lopsided. They decide to go tell Calpurnia because a mad dog can be very dangerous. When they show Calpurnia the dog she "stared, then grabbed us by the shoulders and ran us (Scout and Jem) home. She shut the wood door behind us went to the telephone and shouted, gimme Mr. Finches office!" (Lee 123" After Mr. Finch arrives they have no option to kill the mad dog before it causes any damage to anybody or anything.
Earlier in the chapter Atticus says to Jem "Shoot all the bluejays you want, if you can hit em', but remember it's a sin to kill a mockingbird. When Scout asks Miss Maudi about it she says "Mockingbirds don't do one thing but make music for us to enjoy". What Miss Maudi is trying to say is that you shouldn't kill anything that cant kill you.
Do you think that this rule would still apply if killing a dog was a sin, even if it was mad? Or does this event have a higher meaning, perhaps foreshadowing on a later event? What significance does this incident have to the book, considering the book is called
To Kill A Mocking Bird?