Whatever You Want, I'm Going to do the Opposite

Here is an example of a typical conversation between Lily and me these days.

Lily: Can I turn off the stereo?
Me: Sure.
Lily: Well, I don't want to.
Me::shrugging:: Then don't.
Lily: Maybe I do want to.
Me: Silent...it's better than perpetuating the inevitable back and forth or picking a fight about something I don't care about at all.
Lily, turns the stereo off. Then turns it right back on.

Oy!

Between this contrary attitude of Lily's and Ryan's continuous fussing I'm about to pull my hair out.