Slightly tangential thing I learned: Have you ever wondered why VCR clocks always showed 12:00 and were never set[0]?

It's because people simply didn't bother set the time on the VCR. I learned this from Mikko Hyppönen when he was telling us that people never change the default password on their IOT devices allowing hackers to access the devices and probably use the devices for cryptocurrency mining or launching a DDoS attack.

[0] https://www.reddit.com/r/AskReddit/comments/3a06hk/were_vcr_...