Well, as the Chapter Title reads, this is the end of Donnie's sanity. So, yes, the story title is a bit of a contradiction.
Chapter Three: Becoming Feral for Dummies; And The End of Donnie's Livelihood.
Donnie hit the ground and rolled on his back. He put his hands halfway over his eyes and stared at the hot Sun. The Sun can do crazy things to people who spend most of their lives under it's heat. Especially Ghouls. Lost time spent in the desert can eat away at their brains. More radiation poured on top of their already ruined bodies make their condition worsen.
"Endless Walkers" are perfect examples of what's happening. "Endless Walkers" were Ghouls that were banished from The Reservation in New Mexico. They were stripped of all possessions. Food, water, weapons, clothes. All of it gone, and they were forced to wander the Wastes. After countless hours in the Sun, and being exposed to radiation, they finally went crazy. They have no ability to reason.
Donnie was becoming Feral. Just like the Endless Walkers of the New Mexico city, The Reservation.
He caught his breath and stood back on his feet. He put his hand on his forehead, and shielded his eyes from the Sun. He looked in all directions, North, South, West, East. He saw nothing but the typical sand dunes, dead trees, rocks, and cacti. He looked to his Pip-Boy 2000 and moved his hands to press a button. But it wasn't there; just wires sticking from a hole.
He sighed, and looked around one more time. With that; he wandered. Not knowing what to do; not knowing where he was.
Donnie woke up, hungry. He lifted his arms in front of his stomach, and left his wrists limp. He stretched his neck out and an awful stench stung his nose. He sniffed a few more times, then couldn't stop. He started to love the rusty smell. Donnie slowly limped in the direction of the smell.
After just minutes of walking, the source of the stench was right under Donnie. He looked down and saw the rotting corpse of a Giant Molerat. His lip twitched as he bent over to take another sniff of the corpse. He opened his mouth, and hissed, he shoved his face into the animal carcass and started to bite and tear the skin and meat of the animal.
He heard a crack, and he looked up from the corpse to see a Wastelander standing with his son. The man and son both had hunting rifles, they clenched their weapons tight as they backed away from the Ghoul.
"Stay back! I wont hesitate to shoot you!" The man called out.
Donnie tried to run away, but he could smell their fresh blood. Despite his struggle, he took a step forward. The man lifted his weapon, and pushed his son away. But Donnie didn't care, he kept toward the man, until his limp walk turned into a run. He hissed and growled, until finally pouncing on the man as he shot.
A bullet hit Donnie in the side, but he was too obsessed with feeding off the hunter to care. The man under him threw his arms up to try and throw the Ghoul off. But Donnie overpowered him. He opened his already bloody mouth and bit the man's face. The hunter started to yell, and Donnie tried to stop. But his hunger bested him. The man stopped moving, and Donnie looked up to his son, not so far off in the distance.
He screeched at the boy, until he dropped his weapon and ran. Donnie looked back at his feast, and dug his face in.