In China, your friendly neighborhood popcorn maker is waiting on the street corner to show you just how superior his method happens to be.
A metal, teardrop-shaped container is filled with popcorn, sealed, and cooked over a flame. When the pressure gauge mounted at the end reaches a certain level, the street vendor opens a lever on the side that shoots air into the metal cooker, relieving the pressure and shooting out freshly popped popcorn. The sound of the pop resembles a bomb going off. Or Shanghai during Chinese New Year.
This method of popcorn making caused quite a stir in the US last year when it was featured on an episode of Mythbusters. The Chinese were similarly amused by how dangerous Americans found it to be.
The whole process takes only a few moments. 5 rmb will get you a bag of this kettle corn like snack and a near death experience to go with it.