Put a "Please Use Other Door" sign on the entrance to your office building if it only has one entrance.
Change the coffee in the office coffee maker to decaf.
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.
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!
There was an employment advertisement in an office. So a guy went there. Managrer asked him: "Do you know what is the meaning of Ph.D.?" The guy answered: "Passed High school with Difficulties."
Hide an alarm clock in someone's bedroom and set it for 3:00 a.m.
Hide all of the desktop icons on someone's computer and replace the monitor's wallpaper with a screen-shot of their desktop.
April doesn't fool Chuck Norris, Chuck Norris fools April.
Office executive "Sir, can I have a day off next week to visit my mother-in-law?" Boss "Certainly not!" Office executive "Thank you so much sir! I knew you would be understanding."
Wife asked her husband to give her the newspaper. Husband: "How backward you are? Technology has developed so much and you are still asking for the newspaper... Take my iPad..." Wife took the iPad and killed the Cockroach. Husband faints. Moral: Whatever the wife asks, give her without argument. Show your smartness in office, not at home.
I just recently discovered that there is a national holiday named after Atheism. April FOOLS day. Like this story in the name of Jesus.