The best April fools jokes

Put tape over the optical sensor of someone's mouse.
Vote: has 83.88 % from 14 votes. Send joke:

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Hide all of the desktop icons on someone's computer and replace the monitor's wallpaper with a screen-shot of their desktop.
Vote: has 82.28 % from 39 votes. Send joke:

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Paint a bar of soap completely with clear nail polish so it won't suds up.
Vote: has 79.57 % from 19 votes. Send joke:

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Write a message on an upside-down paper cup that alludes to something horrible being trapped under it. Leave it on a coworker's desk or in a conference room.
Vote: has 75.00 % from 15 votes. Send joke:

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Find a sleeping person, fill their hand with shaving cream and then tickle their nose.
Vote: has 75.00 % from 15 votes. Send joke:

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Remove the shower head and place a chicken bouillon cube in it, then put the head back on.
Vote: has 71.85 % from 13 votes. Send joke:

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Put a "Please Use Other Door" sign on the entrance to your office building if it only has one entrance.
Vote: has 71.85 % from 13 votes. Send joke:

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Change the coffee in the office coffee maker to decaf.
Vote: has 71.85 % from 13 votes. Send joke:

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Take a squirt gun into the rest room stall next to someone and shoot little drops over the wall every couple of seconds while pretending to pee.
Vote: has 69.96 % from 12 votes. Send joke:

More jokes about: April fools, disgusting
Pull on a coworker is to press ctrl+print screen on their workstation, then paste it into Paint, save the pic, and set it as the desktop background. Move all of their icons to the trash. When they get back to their desk, clicking won't accomplish anything!
Vote: has 69.96 % from 12 votes. Send joke:

More jokes about: April fools, computer, office