Estimates

Spock: “Ahh, Mr. Scott, I understand you’re having difficulty with the warp drive. How much time do you require for repair?”

Scotty: “There’s nothing wrong with the bloody thing!”

Spock: “Mr. Scott, if we return to Spacedock, the assassins will surely find a way to dispose of their incriminating footwear, and we will never see the Captain, or Dr. McCoy, alive again.”

Scotty: “Could take weeks, sir.”

Spock: “Thank you, Mr. Scott.”

(From Star Trek VI)