[That's an insult, and contrary to all accusations of stupidity, she knows it's an insult. And by the way she kind of gasps and draws back a little bit, it should be obvious that she does get it.

But things are not about Kat right now; so she squares up and answers directly instead of letting herself be angry or hurt.]

You're right. I do have a tendency to bite off more than I can chew. I guess my eyes are really bigger than my stomach.