You've found yourself in the custody of the meanest sumbitch the wasteland has to offer. There's a bounty on your head, and this ghoul is looking to collect.
He trails a few feet behind you, making sure you don't try to make a break for it before the two of you arrive at your destination. Your legs ache terribly, strained from hours of walking in the hot sun, and your throat feels drier than the dirt crunching under your shoes. You can't help but turn to look at him as he takes a drink from his canteen, desperate for even a drop to quench your thirst.
The Ghoul meets your gaze. In a sadistic display, he downs the rest of the water in the most wasteful way he can muster, letting the precious liquid run down his chin with each gulp before turning the canteen upside down and letting the remaining water go to waste.
When all is done, he shoves you by the shoulder harshly, forcing you to press on at gunpoint.
"Keep movin'."