Why, after offering you bananas for six days, I throw them in the trash, then you immediately run around the corner and ask for a (now rotten and trash tainted) banana?
Why, will you not eat prunes, and then eat the same prunes with tasteless sprinkles on top?
Why will you turn up your nose at cucumber, and then devour said cucumber after mommy takes a tiny bite and tells you it is now shaped like the moon? (Related: we are seriously obsessed with the moon right now.)
Why will you eat tomatoes that I buy with caution, then once Costco-sized carton of tomatoes (or grapes) are purchased, you boycott?
Why do you turn down carrots every time mommy makes them, and gobble them up every time GMom makes them?