"Mister Sulu, if I'd wanted a Russian history lesson, I'd have brought along Mister Chekov."
- Kirk, after Sulu refers to the Tunguska blast of Siberia
Well, DiAmato thought it was funny. Kirk was often snippy with the crew. I forget the episode, but he once told Sulu to "Mind your helm" when Sulu thought he was offering an important observation. He jumped all over Uhura in Journey to Babel
when she failed to switch to the internal locator when searching for the spy's transmission (at least he had a reason for that one).