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The video above depicts a teacher in South Korea providing his students with Warheads, a popular sour candy treat from the United States. The teacher explicitly warns his students that the candy will taste very sour for 10 seconds. But despite all advance warnings, the students can't handle the sour ecstasy, as they run and flail through the classroom without any safe haven or a glass of water in sight. Watch the cute video above, and see how these South Korean students succumb to the mighty power of sour candy.