I makes about as much sense as putting jawbreakers in the microwave. I watched a Mythbusters episode where they showed children that did it. Turns out it melts an inner layer and when bitten hard enough, it explodes spraying molten candy everywhere. One girl had severe burns covering a large area of her face and eyes. When they tried to re-create it, 2 of the crew were burned when the first one exploded. They were several feet away.