There are perhaps endless possible responses Tuit could present. Here are a few of them:

1. "Don't hassle me, I'll get around to it!"
2. "I'm not going to even try anymore ...because whatever I do is never good enough for Ma!"
3. "I hate my sister ...she always tries to put on a show to make me look bad!"
4. (silently to self) "I'll do even worse, then I won't even be asked to do anything anymore!"
5. "Maybe I should pay closer attention ...I know I'm not doing my best!"
6. "Sister, can you help me out ...and point out some things I'm doing wrong, and how I can do better?"

(I was in a situation where Dad had my brother and me chopping wood.  I was not utilizing #4, attempting to do so bad that I'd get out of the work ...but, the fact is, after breaking three ax handles, Dad said, "No more for you! You splint more ax handles than wood!"  Chopping wood seemed fun, but I was overreaching with my chop.  And having to haul and stack the wood that my brother chopped may have been slightly easier, but not much ...and not much fun either.)