"If you're with someone, you need to lay out ground rules," he said, after a moment, "This isn't the train. People don't like to be fucked around on."

You couldn't be picky or possessive on the train. No one really had that luxury. Sure, there were a few that tried the traditional route, married couples who never strayed, but you never knew when the assholes in the front would come and split you apart. It just never seemed worth it.

"I'd rather not have Rat come at me with a knife, if I can help it."