While not technically a school computer. In college we all had to install a WiFi client to access the school’s WiFi. It was shit so I started digging around and found the localization files in plain txt. I then, when I had the opportunity to, booted into a friend’s computer with Linux and changed the confirm button to say “I’m a bitch”. They never asked me to change it, which I would’ve, so it just stayed like that all year.