Doc's handling of the long line of the crew who show up at his door every day trying to trick him into letting them off duty with a sick pass:
Reber: Say, Doc, when I woke up this morning, I had...
Lt. 'Doc': And remembered you were working cargo. Continue.
Reber: [holds his side] Honest, Doc, I couldn't even straighten up! I guess it's the old appendix again, huh, Doc?
Reber: Aspirin!? For a floatin' appendix, Doc?
Lt. 'Doc': Yes, it's the latest thing. I'll have one with you.