Episode 12 Season 15 Staying Cool Never Looked So Uncool World's Dumbest Season 15 - Ep. 12 WORLD'S SMARTEST INVENTIONS: The hat which makes any attractive person look ugly. Replay Share 5 Up Next Circus Show Gets Hosed World's Dumbest Season 15 - Ep. 11 Full Episodes World's Dumbest Up Next World's Dumbest Circus Show Gets Hosed World's Dumbest Stunt Man's Proposal World's Dumbest The Real Estate Rap World's Dumbest Severe Road Rage World's Dumbest Signs of Alcoholism World's Dumbest The Miseducated Caller World's Dumbest Season 15 Episode 12 Staying Cool Never Looked So Uncool WORLD'S SMARTEST INVENTIONS: The hat which makes any attractive person look ugly. Facebook Share on Twitter Watch Full Episodes Up Next Circus Show Gets Hosed Maybe it's time for this lion tamer to consider a career change. More From World's Dumbest World's Dumbest Little Annie's Air Mattress Takeoff A little thrill seeker gets more than she bargained for as her older brother tosses her in the air. World's Dumbest The Ass-tronaut In honor of breaking a record, this man decides to break something of his own. World's Dumbest The Tainted Skateboard A skater snaps his board in an rather unique, and painful way. World's Dumbest WORLDS DUMBEST Fan Questions The cast of <i>Worlds Dumbest</i> answers questions sent in by fans. World's Dumbest Hard Rocker does a Frozen Cannonball A little ice won't stop this German rocker from diving into the pool. World's Dumbest Intoxicated Parkour After one too many drink, this kitchen acrobat literally brings the house down. World's Dumbest Intoxicated Russian Ladies Go Hiking in the Snow Two drunk women struggle to keep their balance in the snow, while one creepy dude records them from his window. World's Dumbest Mortified Onlookers Watch as Santa Makes Horrible Life Choices Drunk Santa is a danger to himself and others. Someone really should stop him. World's Dumbest Muddy Music Fan Slides into Gross History Only at a music festival can you witness a perfect storm of stupid. World's Dumbest Pool Party Ends with a Fat Friend Getting Pranked Friends looks like they're helping their buddy get out of the pool, until they're not. World's Dumbest Amateur Rappers Hide In Alaska Alaska is the new home to up-and-coming rappers. World's Dumbest Fireworks Destroy Boat Parade A sad boat parade livens up with some accidental fireworks. World's Dumbest Santa's Military Rescue Operation A daredevil Santa Claus calls in for backup when he gets stuck during a dramatic entrance. World's Dumbest Eager Boxer Gets Bloody Chin The American basement is home to innovation and bloody violence. World's Dumbest Policeman Destroys National Anthem A mumbling police officer shows off his patriotism with a terrible version of the National Anthem. World's Dumbest Spinning Leaf Blower Catastrophe There's a reason that carnival rides aren't made out of gardening equipment. World's Dumbest Sinister Rodent-Shocking Machine Eliminate pesky squirrels chowing down on your bird seed once and for all. World's Dumbest Spinning Leaf Blower Catastrophe Eliminate pesky squirrels chowing down on your bird seed once and for all. World's Dumbest The Perfect Wallet For Your Bra The Rack Trap helps protect your most valuable possessions...in your bra. World's Dumbest Coffee Shop Of Horrors Unbelievable things can happen on a typical coffee break.