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OFFICE PRANK WITH WIRELESS MOUSE
This works best if your coworker uses a traditional mouse but you have a wireless one handy. Simply connect the wireless mouse to your coworker’s computer by inserting the almost unnoticeable nano-receiver into a USB port, and then pick the perfect moment.
Those who have done the prank before suggest waiting until your coworker starts to use the mouse before jiggling your own. Your colleague may think that mouse’s behavior is just the computer acting up. From there, you can move to full Big Brother mode by completely taking control of the mouse’s movements and opening a bunch of applications while your coworker watches in horror.