Christina's book is filled with everyday dealing with the family/children stories that always start off like something you'll immediately recognize and then shifts to the funny. A lot of her humor seems like great parenting tricks too - like keeping the kids from bothering after a certain time of night by telling them it better be "Blood or fire" that inspired the interruption. Like
*Knock knock*
Parents: "Blood or Fire?"
Kid: "Um... nevermind..."
Brilliant!