Yawning: The World’s Most Contagious Prank

Yawning - The World's Most Contagious Prank

Roman Atwood set out to create the world’s most contagious prank. He made a video of himself, demonstrating the power of the yawning on complete strangers from around the world.

Every time I watch this video I start yawning, Its definitely contagious. Even a dog gets in on the act, following his owners yawn at the end of the clip.

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