A long time ago—almost a quarter of a century—I worked in a research lab, designing measurement and data acquisition electronics for high energy physics experiments. In the interest of providing motivation for what follows, I will say a few words about the job. It was interesting work, and it gave me a chance to rub shoulders (and drink beer) with some of the most intelligent people on the planet (though far too fixated on subatomic particles).
The work itself was interesting too: it required a great deal of creativity because the cutting edge in electronics was nowhere near sharp enough for our purposes, and we spent our time coming up with strange new ways of combining commercially available components that made them perform better than one had the right to expect. But most of my time went into the care and feeding of an arcane and temperamental Computer Aided Design system that had been donated to the university, and, for all I know, is probably still there, bedeviling generations of graduate students. With grad students just about our only visitors, the atmosphere of the lab was rather monastic, with the days spent twiddling knobs, pushing buttons and scribbling in lab notebooks.
And so I was quite pleased when one day an unexpected visitor showed up. I was busy doing something quite tedious: looking up integrated circuit pin-outs in semiconductor manufacturer’s databooks and manually keying them into the CAD system—a task that no longer exists, thanks to the internet. The visitor was a young man, earnest, well-spoken and nervous. He was carrying something wrapped in a black trash bag, which turned out to be a boombox. These portable stereos that incorporated an AM/FM radio and a cassette tape player were all the rage in those days. He proceeded to tell me that he strongly suspected that the CIA was eavesdropping on his conversations by means of a bug placed inside this unit, and he wanted me to see if it was broadcasting on any frequency and to take it apart and inspect it for any suspicious-looking hardware.
He also told me that he was regularly picking up transmissions from what could only be visiting flying saucers, which showed up in the static between AM stations, and he was wondering if it would be possible to modify his unit so that he could transmit messages back to them, because, you see, he wanted to hitch a ride.