'Mobile society' was a foreign word, if not a taboo word for Caine's world. But that isn't on his mind. When Kirk fakes falling, Caine actually reaches out and takes Kirk's far shoulder, creating a kind of barrier with his arm so Kirk couldn't fall without Caine catching him.

"Believe me, I didn't think you could," Caine sighs and backs off once Kirk is steady. "They look pretty puny."