Breaking Bad, Season 2

Walter:
Jesse, look at me, you are a blow fish.

Jesse:
What?

Walter:
A blow fish, think about it. Small in stature, not swift, not cunning, easy prey for predators, but the blow fish has a secret weapon, doesn't he? Doesn't he? What does the blow fish do, Jesse? What does the blow fish do?

Jesse:
I don't even know what...

Walter:
The blow fish puffs up, okay? The blow fish puffs himself up four, five times larger than normal but why? Why does he do that? Because it makes him intimidating, that's why. Intimidating so that the other scarier fish are scared off and that's you. You are a blow fish. Don't you see? It's just all, all an illusion. It's nothing but air. Now, who messes with the blow fish, Jesse?

Jesse:
Nobody.

Walter:
You're damn right.

Jesse:
I'm a blow fish.

Walter:
You are a blow fish. Say it again.

Jesse:
A blow fish!

Walter:
Say it like you mean it!

Jesse:
I'M A BLOW FISH! BLOW FISH! YEEEAAAH! BLOW FISHIN' THIS UP!

[Jesse takes big bong hit]