I use to volunteer in the 80's, 90's and early 2000's as a 911 operator. "Back in the day", we had to do everything on paper, had only 1 terminal to run wanted checks, licenses etc. Around 95, we got computers to do everything. We had one dispatcher, one of my best friends, older lady who was scared to death of computers. One evening, I was about to go off shift. I went into the control panel, changed the scrolling message screen saver, to not kick in unless nothing was touched for over an hour, which means it wouldn't trigger until 2-3am, when it died down.
Even after I left at midnight, I'd stay up til 3-4am on Friday night/Saturday morning.
My phone ran about 2:30 am. The voice on the other end said... "I'm going to KILL you the next time I see you".
Why? Well the message that blanked out the screen and started scrolling said "Critical hard drive error, all data lost on C:\. Contact your administrator to have system installed".
We all had a good laugh about that one.