Second one - Every few years we get a new laptop and have to migrate all of our files and stuff over to the new one. Some departments have someone who can copy your drive. Rumor has it that one such department found a bunch of porn on someone's computer while doing the copying.
Several years ago I was doing graduate work in criminal investigations and computer forensics. The head of the program asked if I'd come in on Saturday and work with her to assess several computers which had been passed to the program for use in the labs. She was going to show me how to use some new tools for looking at *everything* on hard disks - including anything that had ever been there but erased. We found more porn than I can ever describe here! Also included were emails about infidelities, to lawyers, drug use, drinking problems, etc. We laughed as we worked and wondered how anyone in that office found time to do any work!
This is also a good lesson about what you may put on your own hard drive! A good investigator (or a clever 16 y.o.) can find stuff you thought was gone forever!
Here is a question for you, or anyone else who knows. If you reformat your computer, as in 'wipe the whole lot and start over' (not just hit delete) do those search methods still work? Is there any way at all to completely erase a computer?
Just wondering, because an an *ahem* gentleman of my acquaintance was arrested for a particularly horrible crime and is now in jail. He used to go on and on about wiping everything off his computer and reformatting "just in case". I'm wondering now if he had things in his files that would have incriminated him.
As for the Darwins, The one that always comes to mind is a young fellow who was playing with a bottle of lighter fluid in the back room. Nearly started the whole store on fire.
A manager noticed the smoke and went to see what was going on. Co-worker told him it was none of his business (seriously, he didn't even try to lie about it!). Manager was very young and new to the position, so he just made sure the fire was out and had a little chat with the owner the next day. When Co-worker showed up for his next shift, the police were waiting for him. We never saw him again.
Then there was the girl who had a fistfight with a customer in her first week of work. And the guy who didn't show up for three weeks (still employed, but just barely), several people who threatened the boss, and one who shoplifted his lunch

. Come to think of it, I've worked with a lot of careless people.