two things: Both of these are things I had to clean up from.
1. We used micro-drives in our casino machines. Think Compact Flash but with a really small 512mb spinning rust in it. We would lose these a lot because it was a really bad idea but they were marginally faster than the flash of the day, so...my tech is at a casino and one of the machines won't boot, I have him grab the drive out of a good one, bring it to the server room and make an image, turns out, he wrote it to the base OS drive on the server instead of to an image on the drive. (resulting in both of us driving back out to the casino to reinstall the server the next day.) [DD is awesome and SO dangerous.]
2. recently the company started switching development environments over to docker, but if you setup the install script and have an environment variable that is empty on the host OS, but you still include a / after the environment variable, then when you install Percona (mysql) it will chown 499.499 to your whole drive, such that it has permissions. The script was run as root. This was my home machine I had brought in to setup so I could work from home that weekend. Instead I got to reinstall the OS and thankfully it was a new install already so we didn't lose any data.