Kirk: Too bad the planet doesn't have any good rock climbing areas.
Bones: Oh, he's a rock climber now.
Kirk: What? I used to climb all the time.
Bones: In the canyons of Iowa, I suppose?
Kirk: Yes, as a matter of fact, in the canyons of Iowa. Why, I remember once driving a Corvette -
Bones: Driving a Corvette?? I suppose they were still manufacturing petroleum in Iowa too? To fuel internal combustion sports cars, even though the entire world was using antigravity vehicles since centuries before you were born?
Kirk: As a matter of fact, it was a convertible -
Spock: Can't be Iowa they drop Red Matter on, no....