S3·E17 The Joke's on Schemer

It is the day before Schemer's favorite holiday(april fool's day), and don't the kids know it! They dread Schemer's pranks, so they decide to play a trick on him; They tear a page off Stacy's calendar, so it reads April first. Schemer walks in, and sees this, exclaiming that everyone's going to be out to get him. So he rigs up a bunch of pranks, including whoopie cushions, ""Ararararar Teeth"", and lining the entrance to the arcade with ""Super Sticky Space-Age Goo"". However, everyone thinks that Schemer is even wierder than usual, and it just so happens that J.B. king is coming so Schemer can renew his arcade lease. It would've worked out, but Schemer regarded the whole thing as a big joke, and shredded the lease! Soon, Schemer discover's the kids's prank- just as some movers start packing up the arcade machines!