I know some of them are just amazing and scary.
The RAF were used to stop drug smugglers too, at least...you could say they were. One night they picked up an aircraft flying in with identification. Naturally they believed it to be Soviets playing their game, so they scrambled a Lightning to go intercept. They picked up Lightning as being right above the spot where they had the aircraft, but there was nothing there. Being the middle of the night, the pilot radioed back as there being nothing present.
While circling the area, he felt a huge bang and the aircraft shook violently. He reported it and headed home, landing without incident...
...the next morning the crew went out to check the aircraft. Nothing was wrong except a massive scar under the fuselage. They assumed it might have been a bird...or...a plane. Later that day the local news reports a Cessna 150 had crashed in the very same region he'd been circling that night.
In conclusion, they were drug smuggling. No lights, no IFF. And the Lightning had smashed into the top of them, luckily for the Lightning he only scrapped them, any higher and bits would have been flung into the intake. The Cessna, however, felt the wrath of 50,000 lbs of EE Lightning and fell out of the sky.