Malcolm in the Middle, Season 7

[After Dewey misses his flight, gets his hand shut in a door, and gets sprayed in the eye with hot sauce]

Lois:
Well, the redness is going down. I think you can compete just fine.

Dewey:
Why don't you just cut the act, mom? You got what you wanted.

Lois:
What are you talking about?

Dewey:
You don't like watching me be successful because it reminds you you never did anything with your life. And now, instead of taking joy in your kids' accomplishments, you undermine us so we won't show you up! Maybe it's unconscious, maybe you know you're doing it. But that's what's been going on this whole trip!

Lois:
So what?