Tasty Mystery Baskets of Clips

He doesn't have a high school diploma.
That's it! I'm going back to high school!
Congratulations, Rigby,
We're both the same amount of smart as each other!
More smarter.
Welcome to the Education Mentor.
Ask Skips what?
Oh no. We've become so smart, they're stupid to us.
Very funny Mordecai,
Rigby can't answer that question.
That lousy High School diploma.
First of all, I wanna contradict your earlier statement, Rigby.
And if you stop goofing off and clean up this graffiti now
wait! I've got my diploma!
- RIGBY! - Huh? Wha?