Answer:
The main difference between us and zombies
Barren location, infertile and dry; my name means "to leave", it's not heard to see why
The negative hero in each story
If you blow past your destination, you'll have to throw your car into this.
Break it and it gets better, immediately set and harder to break again.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?