I got pranked with this website: https://updatefaker.com/
I recently switched from manual labor to office labour and learned the hard way to lock my screen :)
In hindsight it was hilarious, but I waited for maybe 20 minutes before I got suspicious. How can I take revenge?
Take a screenshot of their desktop. Set that as the background image. Right-click the desktop and uncheck View -> Display icons on desktop.
save