Throwing a cup of hot water into the air in sub-zero temperatures
One of my colleagues on a previous team was stationed in Alaska as part of his military service. He said that one of the things people did for a cheap thrill was to take a cup of hot water outside when it was like a bazillion degrees below zero and throw it up into the air. (Things must be really boring in Alaska in the dead of winter.)
But you have to see it to believe it. And now you can.