This reminds of my days at university, where I had a secret gaming club, where all the games I had collected were zipped on my student drive. I had to hold down the abort keys and wait until it advanced to 100% before I could prove that everything was really okay. Pressing CTRL-C just interrupted the current SLEEP, so it caused the percentage to advance faster.
But QBasic didn't understand CTRL-C during the SLEEP command. At that moment I regretted my deception and tried to abort the demo. She stared at the screen, eyes wide open, and mouth agape, as the terrible seconds ticked by. Some classmates were watching the screen and she hurried over to see what all the fuss was about. I waited until the teacher was hovering nearby and then I started my application, running the FORMAT command on the network drive. The day arrived when my project was ready to be unleashed upon the world. Usually students would be playing Secret Agent or Jill of the Jungle. The simulation was so realistic that during development, I was kicked out of the lab. It would pretend to execute three commands: DIR, DEL *.*, and FORMAT. I created an exact clone of the school's DOS system using QBasic.
Back in high school, I had too much free time, so I decided to play a joke on my computer teacher.
