I wish I had had the capability to run around the computer systems of yore. I would've sent Madonna music videos to everyone's screens. That would've been more productive than PE. At least I think so.

Let's Play

"Installed Age of Empires Two on each PC."

- ClassofClowns

"We did this with Counterstrike lol."

- bottles124

Gaming the System!

"So many gaming memories from school computers lol. Shared resource drives were the bane of our high school's existence, because I'm pretty sure we didn't have any IT staff, or if we did, the students were just smarter than them honestly."

"Among other things I remember stashing: Halo PC LAN, a SNES emulator with a handful of ROMs, computer tech typing assignments everyone would just copy and slightly modify. One kid had the Paris Hilton tape on there and watched it very openly in art class."

- Caruthers

Control+ Alt+ Down... Voila...

"Screen shot desktop make as background... hide icons."

- Don_Givafu

"I did this, but went one step further. Back in the day of Windows XP (and maybe earlier), control+alt+arrow key would flip the screen orientation. I.e. ctrl+alt+down would flip the screen upside down. So... Take screenshot, rotate image 180 degrees, control+alt+down... Voila."

"Suddenly their desktop is right side up but all their mouse movements are all reversed and their "icons" no longer work. Once came back to find my roommates monitor in uni upside down. Forgot I did it to them over the weekend. Teehee/oops?"

- Scott_Richards

People Share Their Unexpected Happiest Moments | George Takei’s Oh Myyy

The Backdoor...

"There was no internet when I was in school and MSDOS was the rule of the day, so no fancy hacking, downloading, or whacked out wallpaper. Instead, two of us were commissioned to write attendance software for the school. We put in a backdoor wherein any time either of us showed up as tardy or absent, the record was immediately deleted. We used but didn't abuse this privilege so as not to attract too much attention. It worked perfectly."

- stupidlyugly

Nirvana

"Late nineties, high school. I synced 5 computers to play "Smells Like Teen Spirit" in a round. Teacher wasn't happy."

- To_be_a_better_man

Nirvana. Now that sounds like an idea. You kids already play too many games online. And don't they teach hacking classes in high school these days?

15 Minutes

"Created a shortcut saying to not click it. When someone did, given like 15 minutes later, the computer restarted. Any unsaved work was deleted. They can't complain because they clicked the icon."

- BenidictCumbersnatch

F5

"It's not really messing with the computer but I used inspect element to change the text in my school's website in detention and the kid next to me thought I was hacking and told the teacher, I pressed F5 to refresh and the teacher told the kid off for trying to get me in trouble, he looked so confused when everything was back to normal, also my friend once rearranged the keys to spell swear words, no one noticed for weeks tbh."

- Classified313

The Tortoise

"By giving LOGO's turtle random high numbers before leaving the computer class, so the little fella would go bananas and scribble at speed of light until it covered all the screen. Probably that could be stopped by just pressing a key but it used to drive the teacher insane, and hearing him yelling and cursing was the best."

- V02D

Shut it Down!

"I shutdown all the computers in the lab from my computer, including the teachers. Most in the class knew that I had done it but they didn't mention it."

- Charn22

"In the early days of computing, when they became small enough for one to be shared by multiple users on a college campus, it became sport to crash the whole system. The admins opened the machine and physically altered the machine (which was the way back then) to include a new "crash" command, which took all the sport out of it."

- LockjawTheOgre

Death

"I hid the taskbar, the icons and disabled a lot of basic settings. Then I put the blue screen of death as the wallpaper."

- No-Artichoke-54

All it takes is a couple of innocent clicks and the next the you know... chaos. What a way to get through the day. Kids can be so devious. LOL.