Walt: Jesse, you are a blowfish.
Jesse: A what?
Walt: A blowfish. Small in stature, not swift, not cunning. Easy prey for predators. But, the blowfish has a secret weapon, doesn't he, doesn't he. What does the blowfish do, Jesse?
Jesse: … I don't even know what-
Walt: --The blowfish puffs up, okay. Puffs himself up, four, five times larger than normal, and why, why does he do that, so that it makes him intimidating. So that the other, scarier fish, are scared off. And that's you, you are the blowfish.