In the story A good man is hard to find the grandma is a pretty selfish and she only really thinks about herself. In the beginning of the short story she insists that the family shouldn’t go to Florida even though it had been established that they were going. She just makes excuses so that they don’t go.
They eventually go and on the road trip the grandma remembers a house that had a secret when she was young. The family decides to take a detour and goes to this house. When they start to go she realizes the house was in Tennessee and not Georgia. She doesn’t say anything and just let’s the dad drive. Then all of a sudden the car flips over.
Then, the misfit arrives. He was a very bad criminal that escaped jail and was on the run. The grandma recognizes him and points it out. He now has to kill them because if he doesn’t he knows the family will turn him in. So he has his “helpers” take the rest of the family to the woods and has them kill the family first. Then the grandma tries to convince the misfit to change but fails and dies to.
If the grandma wasn’t so selfish and arrogant the family may have survived. If she had just told them that the house was in Tennessee maybe they wouldn’t have flipped over and met the misfit. If she didn’t point out it was him they might have survived. If the grandma had acted differently the family would have survived.