Phineas, Marvin and others in “Unfinished Business”

Alien threat? What alien threat?

Yeah, if there was an alien threat, we'd know about before you.

Yes, we haven't noticed anything strange.

I catapulted your fortress, Daniel. 3,000 points, officially making me the new master of attack.

All hail attack master Marvin.

Um, look, we're under attack in the real world, so can we borrow your destabilized particle laser ionizer cannon or not?

No! [gets pelted in the face by a banana peel] Who threw that?! Might it be you, attack master Marvin?

Oh, gosh. It wasn't me, sir. I'm allergic to fruit.

Me too.

Me too.

Me too.

Well, bananas don't just fall out of the sky, unless…

Aliens!

Told you.