"I know you could, but sometimes it's not just the marks. You could be asked a question you don't know how to answer without giving yourself away, you could be told to do something you just can't, like killing someone. You could be asked information about the Clan. These things can't be told by physical marks. I know this is your choice to make, but I'm trying to help you understand what you're really getting yourself into before you do anything. Because if you regret it, you can't back out. They'd kill you."