April 1 is a great day for angry office workers: It’s the one day of the year when you can make a fool out of your foes in the name of a national holiday — and they can’t get mad without looking like a bad sport!

To that end, Howcast has provided a Fool Proof April Fool’s Day Playlist showing you a dozen ways to get under your co-workers’ skin, from booby-trapping their office to rigging the office toilets. Check it out…

Oh, and remember that April Fool’s Day begins at home — and there’s no reason not to celebrate April Fool’s Day year round. Is there ever a bad day to short-sheet a roommate’s bed or tinker with the shower to bathe them in chicken soup?