If you'll permit me to re-use one of my (slightly modified) entries from a previous contest...
McCOY: "Scotty, your nephew has some serious internal bleeding, not to mention irreversible cranial trauma... I don't think I can do anything at this point. Why the hell did you bring him to the bridge instead of sickbay?"
SCOTTY: "Uhhhh..."
>Thinks back<
KIRK: "So, Mr. Scott, everything running smoothly on the ship?"
SCOTT: "Aye sir. A few minor problems, of course... the impulse engines are only at 90%, some of the replicators are offline... oh, and for some reason, the main turbolift goes to the bridge when it's supposed to go to deck 12, and vice versa. That one's scheduled to be repaired within the next week."
McCOY: "Deck 12? You know Scotty, sickbay is on deck 12. What if there's a medical emergency?"
SCOTTY: "A medical emergency? On an inspection tour? What could possibly happen? But if it'll put your mind at ease, I'll issue a ship-wide announcement about the malfunction."
SPOCK: "That may not suffice, Mr. Scott. What if an emergency does occur, and someone forgets about the turbolift problem in a panic?"
>Kirk and Scotty both look at each other and chuckle<
KIRK: "Can you believe this guy? A crewmember on the Enterprise, panic and screw up under pressure? Heh, heh, heh..."
SCOTTY: "Ha! I know. Not someone on
this ship, mister! But if it's such a big deal to you two, I'll fix it the first chance I get."
McCOY: "Well, Scotty?"
SCOTTY: "Um, I... I... I thought you'd be more likely to be on the bridge, doctor! After all, you seem to spend most of your time there! How was I to know that for once you'd be where you were supposed to be, doing your job properly! Uh, yeah! God, it makes me... angry! Umm... I've gotta get back to Engineering, but... let this be a lesson for you, doctor! Yeah, that's it, a lesson... for
you. So... I'll see you later then!
McCOY: "Oh god, I think I'm having a heart attack!"
SPOCK: "Is your left arm going numb, doctor?"
McCOY: "Yes! Yes it is!"
SPOCK: "Well then here -- I know how much you like a sense of symmetry. Don't say I never did anything for you."