I did see a somewhat amusing SW anecdote.
Apparently one of the lead set engineers was putting the finishing touches to the Millenium Falcon at Pinewood for Force Awakens and ran into Harrison Ford at some nearby shops. So, given the situation he went up and did a "Excuse me Mr Ford? I'm so and so and happen to be building the Millenium Falcon."
Ford turned, looked at him.. then just said "Toggle Switches."
The guy blinked and was all "uhh?"
Ford nodded and did a "When they built it the first time, they did it cheap. None of the toggle switches had springs in. They didn't have the budget for new ones. You'd have a scene, toggle a switch, and as you said your lines, the toggle switches would drop back into the old position as you were stood in front of them."
So the set engineer blinked again and just said "Well. I think we have the budget now."