Your primary weapon is down, and you only have one magazine left for your pistol. You’re outnumbered, outgunned, and separated from your unit. The enemy is closing in, and you know you’re not going to make it out of this one.
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.