Unwitting prompt courtesy of Munsi
The walking corpse outside your door isn't a zombie. Zombies are honest. Zombies rot on the outside, falling apart right before your eyes. They never hesitate or pretend. They tell you what they want, if not with voices, then with teeth and clutching hands.
Zombies are hungry. Zombies want you, specifically and generally, and they don't stop until they get you. Or until you shoot them.
That corpse isn't a zombie. It's talking and flashing a smile and thinking secret things behind its blue eyes (not milky pale but dead, dead, dead). It's not a zombie.
Better if it was.