Well, maybe in their universe it didn't.
But THIS:
http://xs231.xs.to/xs231/08394/fwfasdf1156.jpg
(Non-plot humor, look if you don't mind missing out on the shock you get when you first encounter it.
)
EDIT: The one that comes after that one is even more WTF, and I'm not spoiling that one for you guys.
EDIT2: Overall point being, the protagonist's parents are a TOTAL RIOT.