Back in the day we had a local cop who was, in reality, a dirty old man (Office Woullet), and it was generally understood that unless something REALLY SERIOUS was going on, he only pulled-over pretty women just so he could talk to them. Anywhooo....One day he pulled me over in my Vega, and since I wasn't a pretty female, I figured I was in BIG trouble. He just told me to get out out of the car. No, "Hello." No, "License and registration, please." Just, "Get out of the car, kid!".
Then he proceeded to walk around the vehicle to give me a "safety inspection" (horns, lights, wipers, etc), as I think he thought he could give me a ticket for something. When I passed all of that, he asked me to pull the hood. I did so, and he took one look inside, pointed at the engine, and asked, "Who did that?"
"I did." (Anyone remember the solid-mount V8 Vega kits Hooker Headers used to sell?)
""You did?"
"Yes, sir".
After a few more questions ("What engine is that? Where did you get it? You got a receipt for it?" etc), he asked me to start it up, rev it up a bit (loundess check, maybe?), and...well...long story short- he couldn't find anything illegal with the car, and I hadn't done anything wrong (that he had witnessed, at least!), so he had to let me go.
But he did so in typical Office Woullet fashion, saying, "Nice car kid. Don't ever let me catch you doing anything funny with it."
And that was it.
(And he never did catch me doing any "funny stuff", either!)