I remember when I was in High School thinking about how I was going to make a living and noting that I'd be 43 in the year 2000. It seemed like a very long time away, and it seemed like I'd be incredibly old. Now, in 2018, it's just one of those life lessons that you can't get your head around when you're young but is so obvious when you're older.
My girl was the Y2K Coordinator for one of the regions (there are 5) for the Federal prison system, so I remember the year 2000, and the two or three years before it, quite well.
You learn all kinds of interesting tidbits when someone you know well has that kind of job, like the fact that fire regulations mean it's illegal to sell lock systems that don't fail open, unless you're a prison or similar that can get the exemption, and where your Purchase Orders specify locks that must fail closed.
In any case nothing of note happened, we were up and sober until late into the early hours of New Years Day ready for a phone call, but it was a valuable exercise, as things like generators were up to capacity and tested, something that was needed but was starved of money otherwise, as these things tend to go when there is no urgency.