"Come on, fellas!" you exclaim, "Let's go get some more pizza!" You and your fellow hobos (for they have accepted you as one of them now) shamble into town, arms outstretched, muttering, "Pizzaaaaaa..." as you go. You stumble into the first pizza place you see, demanding all of the pies (but still mostly struggling to say the same single word over and over). By the time you're done and all of the pizza is gone, the workers have been converted and are also shambling about, ravenously demanding food. This continues until the city, country, even the world is overrun. Humanity has been decimated in the face of this pizza frenzy, and now there are no pizzas left to eat... In time, your kind dies out, as there are no more pizzas or hot dogs or canned beans. Slowly, humanity will begin to rebuild.