My New Favorite Response

Today we were standing in the Plush Horse ice cream shop when the brunette twin, hugging the giant stuffed horse, said, "I want a pony."
I turned to her and said, "As soon as I win the lottery, you'll get a pony."
This is my new response to all requests.  When I win the lottery, you can have anything you want.  It's a non-confrontational way to get out of the conversation, especially since we rarely play the lottery.