Let’s say someone’s just given you a jack-in-the-box. He then motions for you to crank the handle, so you give it a whirl. Round and round it goes until—boom—out comes a platter with the world’s most delicious cake on it. Awesome! Before long, you want more cake, so you crank the handle again—only this time, a fist rockets out and punches you right in your cakehole. You try again. Another fist. Again. Fist. But then, finally, cake.