There is something so comically defiant, so far beyond understandable about what a ten year old will and will not put their foot down on. They are fickle, undecided, and testing boundaries is the only thing that's dependable about them. So what happens when a particular ten year old has been fighting about consuming food, touching certain foods with other foods, and heaven forbid, actually tasting something new his entire life? He does it some more. But now, Tristan can understand punishments, and he chooses to cry and fight and go to sleep and lose allowances and games and play dates and forego dessert for ten months, so what is a person to do? Threaten with something new.
After a particularly trying "dinner" session:
Carrie: "If you don't start behaving I'm gonna spank you."
Tristan: "Ummm, don't you think I'm a little old for that?"
Carrie: "Not when I'm using my fist!"