Well, we have selected the utmost best but more important easy to pull pranks. All of them are do-able in under 30 seconds, cause otherwise it’s not worth the hassle. After all, we developers are a bunch of lazy creeps.  awesome geniuses. Right?

Activate High Contrast modus.

1 hotkey to know, 10 hours of figuring out what the *beep* just happend (of course, the co-worker can do the figuring out.)

Shift + Alt + Printscreen

highcontrast

The “my mouse is busy” prank!

As promised, easy to pull! Just head into Control Panel –> Mouse –> Pointers and change the Normal pointer to the busy one. They’ll think their computer is hanging all the time, but it’s really not. For extra fun, you could make the mouse pointers gigantic.

mouse

Text in my clock?

Need a hint? Nobody likes it when they are told to just GET TO WORK!
Just head into Control Panel –> Region and Language –> Formats Tab –> Customize this format, and change the AM or PM symbols to whatever you want.

clock