Not retro, but when I worked for a consulting company, one of our clients had just acquired a small electronics company. He gave me all the information he had about the product we were supposed to update. He did a data dump without looking closely at the files because one of the flash drives had a bunch of invoices issued by the previous software consulting company so we had a pretty detailed view into what they were…
I once pulled an image of the CF card in my work's coffee machine (darn thing runs Slax linux...). I found a well-appointed home directory full of the developer's web history. Yes, they copy from Stack Overflow too.
> darn thing runs Slax linux
Not surprised. I know of a commercial beverage machine that runs Android, of all things.