Emily: Let's see what else. "When you're eating in the mess hall, never reach across the prisoner next to you." It's a provocation that will get you a fork in your hand.
Rory: I don't think there's going to be a mess hall.
Emily: Well, wherever you're eating, that would apply. What else? "Don't be arrogant." But you're not arrogant. "Don't let anyone give you anything or lend you anything, period. It can get you injured or killed or turned out." I'm not sure what "turned out" means, but they're very careful to warn you off it.
Rory: Got it.
Emily: Now, "if somebody approaches you with a shiv"-
Rory: Do you know what a shiv is, Grandma?
Emily: No, what is it?
Rory: It's like a crude knife, carved from a soda can.
Emily: Oh. That must be why they advise you to "yell for a hack to come help you." What's a hack?