Psych, Season 3

Boat Guy:
What are you guys doing out here?

Shawn:
Oh, you know. Just, uh, hiding from sharks. You know, we heard that they can see you if your lights are on so we kicked ours off.

Boat Guy:
Uh, that's not how sharks work at all.

Shawn:
Regular sharks. Of course. Right. But we heard there was an infestation of genetically-altered, shark-like beasts here, in this area of the water. They can smell the light.

Gus:
They also type.

Shawn:
True. Not well, but they're sharks, with fins... so it's still impressive.