Quote 1
"She's Grandma's worst enemy. She says Mrs. Wilcox's tongue is attached in the middle and flaps at both ends. The town'll be quieter without her, and Grandma will like that."
"You don't know anything," Mary Alice said. "Men don't have any idea about women." (6.11-12)
Joey has assumed that Grandma Dowdel hates Mrs. Wilcox, but Mary Alice sets him straight. He just doesn't get how female friendships work, and especially has no clue about the relationship between Grandma and Mrs. Wilcox.
Quote 2
"And I thought you'd switched the card on Mr. Pennypacker's pie with yours so you could win with his pie."
She shot me her sternest look. But then easing back in the platform rocker, she said, "I did." (4.129-130)
At the end of the day, Joey confronts Grandma about having switched the two pies before the competition. She admits that she did do that…and thus reveals that if she had just stuck with her own pie, she would have won first prize.
Quote 3
"Grandma," I said, "is trapping fish legal in this state?"
"If it was," she said, "we wouldn't have to be so quiet."
"What's the fine?"
"Nothin' if you don't get caught," she said. "Anyhow, it's not my boat." Which was an example of the way Grandma reasoned. (3.52-55)
Grandma Dowdel has an interesting concept of morality and ethics, which is something that she passes on to Joey and Mary Alice. She knows that trapping fish is illegal, but it's technically fine as long as you don't get caught, right? The same goes for stolen boats.