This is how it usually goes:
Mommy: Makenzie, how do you ask for strawberries?
Makenzie: Strawberries, please Mommy.
Mommy: Sorry Kenzie we are all out of strawberries.
Makenzie: Buy some.
Now this isn't usually a nice "buy some" it's more like, "What do you mean we don't have strawberries? Get to the store and buy some!"