[She wouldn't run away from Ryuko...even an enraged Ryuko. She stands her ground and waits, making sure to return her boot heel to the bike's chassis when she hears her coming. Standing with her leg up the whole time would have been counterproductive.]

Does it bother you that I'm touching your possessions? Or does it bother you that I took it out from under your nose without you noticing?

[This really is an elementary school sibling rivalry put into adult bodies.]