Wow, that's terrible!

I feel bad for you brother and agree with Hamster that he's lucky he has you as a sister.

Your mom needs to grow up. It's one thing to be upset that your kid hasn't done well on a quiz. It's another entirely to imply that they are stupid. That's wrong. It's horrible to be made to feel you're stupid. I know because I lived through that. Everyone treated me like I was stupid.

And I agree that if she's stressed at work she shouldn't take it out on the family. I had a horrible stressful day yesterday. I was glad to get home to escape it and be with my family. Work stress does not equal home stress. Leave it at work.