Usually when it comes to candy, there is happiness all around. But when it comes to Warheads, you're in for a full-on battle with your tastebuds.
It's almost impossible not to react to the sourest of sour hard candy, and when a classroom full of South Korean children were faced with the challenge, they failed adorably.
"Many students in Korea have never heard of 'Warheads'. So I gave them a taste of one of the most sour candies with my phone handy," wrote their teacher, Youtube user cfstonge, in the video description.
We're just thankful the event was filmed, so we can enjoy their hilarious reactions.