“Gallon Smashing” seems to be the Internet’s follow up to the Harlem Shake. The prank, in which people throw a gallon of milk high above their heads in a supermarket and then pretend to be injured, originated in Virginia, and seems to be an evolution of the UK craze “Milking,' where people stood still as they poured a gallon of milk over their heads. Internet reaction to Gallon Smashing has been mixed, with some people finding it hilarious, some people finding it dangerous, and lovers of Internet cat videos thinking it’s a waste of milk.