And then there's Scotty's Miracle-Worker philosophy:
Kirk: How much refit time before we can take her out again?
Scotty: Eight weeks, sir. But ye don't have eight weeks, so I'll do it for ye in two.
Kirk: Mr. Scott. Have you always multiplied your repair estimates by a factor of four?
Scotty: Certainly, sir. How else can I keep my reputation as a miracle worker?
Kirk: [over the intercom] Your reputation is secure, Scotty.
Lt. Commander Geordi La Forge: Look, Mr. Scott, I'd love to explain everything to you, but the Captain wants this spectrographic analysis done by 1300 hours.
[La Forge goes back to work; Scotty follows slowly]
Scotty: Do you mind a little advice? Starfleet captains are like children. They want everything right now and they want it their way. But the secret is to give them only what they need, not what they want.
Lt. Commander Geordi La Forge: Yeah, well, I told the Captain I'd have this analysis done in an hour.
Scotty: How long will it really take?
Lt. Commander Geordi La Forge: An hour!
Scotty: Oh, you didn't tell him how long it would *really* take, did ya?
Lt. Commander Geordi La Forge: Well, of course I did.
Scotty: Oh, laddie. You've got a lot to learn if you want people to think of you as a miracle worker.