Two AM Logic

As a writer (hack, if you will), I know suspension of disbelief is vital if I'm going to take the reader on any kind of a journey. When I wear my "reader" costume, I've been known to put a book/story/what-have-you down when the writer violated that sacred trust.

Okay, so here are the problems my brain cooks up at two in the morning (insomnia, anyone?):

1. Why don't zombies eat each other? They obviously don't care that much about sanitation (just look at them) and are pretty indiscriminate about w