Most folks will probably freak out when they see a terminal window (“DOS box”) on a computer.

Many many moons ago I was working at a small mom and pop operation that used ancient PCs to run their registers. The entirety of the front end ran on a 3.5" floppy. One night after closing, I exited to the CLI and opened edit. I typed in “HELP, STEVE BROKE ME” and went to the back to count my drawer. The shift manager had a proper shit fit.

“What are you editing?!? If you break this machine the boss is going to have your head, it’ll cost thousands to have someone come out and fix it!”

I calmly exited back to CLI and ran the front end exe. ¯\_(ツ)_/¯