Admitting to being wrong: Ohhhhh god. It's probably easier for her to admit something like that to herself, because she's (usually) not exactly delusional-- she's capable of realigning her stance and reevaluating a situation if she deems it necessary. In terms of admitting it to other people, though... she has a ridiculous amount of pride, so the bigger and more important something is, the less likely she'd be willing to admit a miscalculation-- just because the more important a situation is, the more important it is to her to be ~*flawless*~ and *~perfect*~. She'd be more likely to admit a mistake for something small and inconsequential, because a mistake in that sort of thing wouldn't really mean much in the long run.

... She'd also "admit" a mistake if she was lying to try to trick or manipulate someone, but that's kind of different. :P

Crowning Moment of Badass: the takeover of Ba Sing Se. SHE LOVES TO BRAG ABOUT THAT TO PEOPLE :P