You are never more screwed than when a Siberian tiger, aka nature’s wrath incarnate, is bearing down on you. The only way you can be more fucked is if there’s a dozen tigers on your tail. Here’s a fun fact: A pack of tigers is actually called an ambush, or a streak, which is what you’ll leave in your pants when you see them coming.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.