A 120 pound rat (apparently it's proper name is a capybara, but a rat is a rat) was found in a wastewater treatment plant outside Paso Robles, in Central California. A sewer rat large enough to cut open and crawl inside. The very thought had me rushing home to sharpen my blade.
Running through the street, I noticed several manhole covers and realized that every one is a portal to a wild subterranean kingdom, rife with sliceable beasts. A perfect haven in the event of apocalyptic storms or nuclear fallout. I was tempted to clench my knife in my teeth and leap down, sunny afternoon be damned.
I did some more research and, judging by this video, once you catch a giant rat subduing it shouldn't be a problem.
The lesson here, my friends, is that no matter where life takes you it is possible that you will have to cut open an animal and crawl inside to survive a storm in the wild, and when that time comes, the animal you need will be there. Whether it's lurking in the sewer or leashed to your neighbor's porch. Have faith. Don't hesitate. Remain strong of heart and quick with blade.