I thought this was going to about pranks My favourite: Take a full screenshot of your coworkers desktop - icons and everything. Include the taskbar. Now rota

I thought this was going to about pranks My favourite: Take a full screenshot of your coworkers desktop - icons and everything. Include the taskbar. Now rotate the screenshot left Now set the taskbar to auto hide and rotate the screen settings (either on your monitor or the computer) to the right Set that screenshot as your background If you do it right it will LOOK like a normal desktop with taskbar and everything but the mouse will run in reverse and nothing of course will work well.