What does the grandmother say to the Misfit to try to convince him not to kill her? Does the conversation alter his viewpoint in any way?

In an attempt to convince the Misfit not to kill her, the grandmother repeatedly asserts that the Misfit is "a good man" and that he isn't "common." The irony of this statement is that the Misfit is clearly an outlaw bent on murdering the entire family, and the grandmother's statement that he's "a good man" does nothing to stop his murderous rampage or change his evil intentions. Indeed, as the grandmother continues to assert that the Misfit is good, the criminal casually orders his henchmen to begin killing the grandmother's family. As such, the grandmother's statements seem to be her attempt to convince herself that she is not about to be killed, despite mounting evidence to the contrary. These attempts grow increasingly pathetic, as it becomes clear that the Misfit is determined to stick to his original plan and kill the grandmother and her entire family.