Everyone gets drunk. Every time I watch this episode, I think of The Naked Time, the episode based on this one they made for TNG. Let's just say it was less than stellar.
That's a pun, FYI.
That said, this is actually a good episode, highly amusing in many ways, and yet with very serious components as well. Also, I think Kevin Riley is pretty hilarious.
I'll protect you, fair maiden!
-Sulu and Uhura