Scare the Crap Out of Your Coworkers with This Ear-Splitting Office Chair Prank

Remember when the whoopee cushion was the epitome of a good office prank? Seriously, when was the last time you've actually seen a whoopee cushion? It's a shame when a classic prank fades into the shadows like a fart in a dungeon. These days, office pranks need to be a little more involved—and way louder—like this amazing air-horn chair prank. Instructables user mikeasaurus created this awesome office prank using an air horn, some electrical tape, zip ties, and a plumbing plug. Basically, the air horn is strapped to the base pole of an office chair, and when a coworker sits down, the weight... more

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