Prof. Farnsworth and Leela in “The Birdbot of Ice-Catraz”

Prof. Farnsworth

For this highly controversial mission you'll be towing the Juan Valdez, an orbiting supertanker full of rich Columbian dark matter.

Leela

Dark matter oil? What if we hit something? The tanker could leak.

Prof. Farnsworth

Impossible! The tanker has 6,000 hulls. So, unlike me, it's entirely leak-proof.