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"Yawning is more contagious than pink eye, bird flu and \"Call Me Maybe\" combined. That's science, people.\nYouTuber Roman Atwood proves the yawn's infectious spreadability with what could be the world's most contagious prank. Atwood traveled the world, emitting giant yawns at each stop, to pull off his exhausting prank and make the stunt a global affair. \nSEE ALSO: 50 Amazingly Epic Pranks\n\nThe video of his jokester shenanigans is entertaining on its own, but think of the clip as a challenge as well. Try to watch the nearly three minutes of constant yawning without letting one loose yourself. \nDid you even get through reading this without yawning? Yawning. Yawning. Yawning. \nBONUS: 20 Entertaining YouTube Videos Under 20 Seconds \n\n\n20 Videos Under 20 Seconds\n\n\n\n\n\n\n\n1. Can You Say Banana?\nApples and banahoahahshas.\n\n\n\n\n\n\n\n\n\n\n2. Cuban Spider\nCuban Pete is king of the rumba beat.\n\n\n\n\n\n\n\n\n\n\n3. Running Toy Poodle\nJust needed a little exercise.\n\n\n\n\n\n\n\n\n\n\n4. Hokey Pokey Dog\nHokey Pokey on repeat.\n\n\n\n\n\n\n\n\n\n\n5. Yay! Kermit Arm Flail\nTypical Muppet reaction.\n\n\n\n\n\n\n\n\n\n\n6. Gangnam Han Solo Style\nGangnam Style + Star Wars = 11 Seconds of Awesome\n\n\n\n\n\n\n\n\n\n\n7. Crawling Cat \nPugs are pretty scary.\n\n\n\n\n\n\n\n\n\n\n8. The Screaming Sheep\nAHHHHHHH!\n\n\n\n\n\n\n\n\n\n\n9. Sneezing Baby Panda\nGesundheit.\n\n\n\n\n\n\n\n\n\n\n10. Soccer Ball + Face = Ouch\nNo description needed.\n\n\n\n\n\n\n\n\n\n\n11. Cat Fight\nFur will fly.\n\n\n\n\n\n\n\n\n\n\n12. Four Legs at a Time\nHoppity hop pug.\n\n\n\n\n\n\n\n\n\n\n13. We're Trucking! \nTrucking, trucking...whaaa?\n\n\n\n\n\n\n\n\n\n\n14. 5 Little Welsh Corgi Pembroke Puppies\nSometimes all you need is a few seconds of puppies.\n\n\n\n\n\n\n\n\n\n\n15. Cheerleader Fail.\nHigh kicks.\n\n\n\n\n\n\n\n\n\n\n16. Afraid of Technology\nThis is why people are afraid of technology.\n\n\n\n\n\n\n\n\n\n\n17. How To Pronounce Hamburger\nNow you know how to say hamburger.\n\n\n\n\n\n\n\n\n\n\n18. \"I So Pale\"\nFailed to watch for the red light.\n\n\n\n\n\n\n\n\n\n\n19. Shortest Attention Span Ever\nWell, that was fun.\n\n\n\n\n\n\n\n\n\n\n20. PSYwalker\nLuke tries to resist the Dark PSYde.\n\n\n\n\n\n\n\n\nImage via iStockphoto, Bevan Goldswain"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/05/28/most-contagious-prank/>