I appreciate that Karen Moy incorporates so many effective literary devices into her story telling. Today is a delightful example of irony: It is Amy who will be surprised when she finds Grandma is already out on a date. I'm guessing it will be Mary who has the satisfaction of telling her this because no one enjoys smugness better than Mary. And irony always leads to smugness.
Also ironic: Amy is killed in a car crash, while Gordon survives despite his lack of a child safety seat.