It's an unfortunate reality that a lot of our biggest problems can start off surprisingly small. Not only does that mean our hardships sneak up on us, but it also leaves us wishing we could go back and make the tiny change that would've prevented all of it.
When this happens, it's pretty natural to get a little intense about preventing the issue when it seems like it'll arise again.
After I lost a whole computer to a lightning storm as a kid, I would get pretty freakish about shutting it off as soon as I heard a rumble outside and selling me a surge protector involved tolerating a bunch of follow-up questions.
With that in mind, we can only wonder what incidents that preceded the strict policies these people followed.