Schrödinbadger's Uncertainty Theorem - Imagine a box. Inside is a poisonous mushroom, a snake, and a random-event counter. After counting an unknown number of random events, a mechanism will wiggle the mushroom like a scared vole, enticing the snake to swallow it. You don't know when this happens, so you don't know whether the snake is still alive or not. Thus, at any given moment, the snake exists as a probabilistic wave function wherein the snake is both alive and dead, simultaneously. Opening the box collapses the wave function, and the observer will see either a dead snake and no mushroom, or both the mushroom and a live snake (sometimes called "Schrödinbadger's Snake").
