The drifter's pleas fall on dead ears. You surrender to your hunger, launching yourself forward with surprising speed for a corpse and attaching your sharp little teeth about the crown of his head, you puncture his skull with ease and, ignoring his screams, secreting the special zombie saliva which will turn his brain into so much slurpable mush.
Quickly, as your spit dissolves his mind even faster than alcohol was already, the guy quiets down and you begin to suck greedily at the brain-juice within. But his yells have done their evolutionary work. You hear running footsteps behind you, and a couple of burly men stomp hurriedly over, running to either side of you to block your escape.
Bounty hunters!
"Get it!" one yells, and the other swings a baseball bat at your face with such force that your nose ends up coming out of the back of your head.