“Zombies do not avoid water or fire. They can easily become trapped in holes, cages, rooms, closets, bathrooms, and cars. Imagine, a zombie chases you into a bathroom. You push the bathroom door to get in and then turn around quick and exit after the zombie enters. It’s very likely this zombie will be trapped in the bathroom. It is not capable of processing that it needs to pull the bathroom door to get out. It simply will push and bang against that bathroom door until some idiot comes along to check and see what all the banging on the bathroom door is about.”