okay this is a really fun thing to do whenever you have a class that uses computers or anything where people will be using microsoft word
if you go to the tools bar at the top, click autocorrect options then go to the autocorrect tab, type in a common word like “a” or “the” and type in something to replace it, now whenever someone types that word it will automatically change to whatever you put 
I just tried that on my own PC as a test. I had it replace the word “the” with “f— y–”. I started to type a sentence (“I am testing the”). Maybe I’m just a big overgrown kid, but I’m still laughing*. That’ the coolest thing ever.
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- out loud
LOL gold!
that’s brilliant!
Ha, I’ve done that for years. But our school has a thing that lets the librarians/computer people watch what’s on our screens from a different computer, and I and other kids have gotten yelled at for doing this. They have no sense of humor. 
Another funny one is to take a screenshot of the persons desktop (get the cursor out) and then apply it as the wallpaper and then take all their icons and throw them in the trash or an invisible folder. (invisible folders can be made by changing to an invisible icon and then rename it and hold ALT + 0160 to make a blank space)
We used to disable net op, it wasn’t all that difficult, just pull out your ethernet cable. We also used to disable deep freeze so we could put CS on the computers and play Counter strike across the school LAN with the visual tech class.
Oh oh and don’t forget, on the macs, you can assign the computer to say things during certain functions. Like when someone hits command + Q it starts cussing them out or something, we used to have so much fun at school.
Another:
Find a picture of a broken LCD screen, open it, press F11 to go full screen (picture must be the same resolution as your moniter), and unplug the keyboard and mouse. To them, it’ll seem like they have a broken screen.
hmmmm sounds like fun…
There’s another one like this. You make a new folder on someones desktop and name it something (preferably something embarrasing, like “nude pics of me” :o ). Then you hit print screen, erase the folder you just made, save the picture and then use it as the desktop wallpaper. The person who owns the computer wont be able to remove the folder unless he/she changes the wallpaper.
Haha those are good ones. Another one is for people who know computers, you put the blue screen of death as the screensaver, and then unplug keyboard and mouse.
Thew blue screen of death is named so for a good reason, you never want to see this screen.
i used to get the BSOD on my old computer loads of times and nothing was bad after i restarted it
Are you sure it was the same screen? This usually means your computer is friiiiied
i dont know, i know the screen i got was blue and said fatal errors have occured or something 
Well lucky you haha