Overheard at our house...
Brunette Twin: "I think I want to get a motorcycle when I get older. I like them. It would be fun to ride a motorcycle."
Mom: "Really? We'll talk about it when you're older."
Brunette Twin: "I'm going to wait until I'm a grown-up to get one that way I won't have to talk to you about it. I know you'll say I can't get one so I'll just wait until I can make all my own decisions to get one."
Mom: "Really? How old do you have to be before you can make all your decisions yourself?"
Brunette Twin: "I have to be a grown-up. I can do whatever I want then. I won't have to talk to you about it."
Mom: "Okay, let me know when you think you're a grown up."