She'll always be Stacey Carosi to me.

I think it's not just because Una pointed out there was crew down there but specifically told Spock they had to (should) stay close. He took it literally as a command whereas he really should have evaluated it for himself.

I don't know how to express that I'm shrieking like a teeny bopper from the late 90s for this via text, but just imagine that's what I was doing for a full minute and 57 seconds!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!