 First, then, Nozick and the individualist anarchist agree that it is one thing for individuals to have rights and another thing for them to have rights to the protection of their rights. It is one thing to have a right against others that they not aggress against one; it is another thing to have rights against others that they protect one against aggression. Being a positive right, the right to protection against violations of one’s rights must arise through some special interaction between the agent who acquires the right and the agent who acquires the correlative obligation. The most common kind of special interaction that gives rise to one agent having a positive right against another is contract. However, the individualist anarchist and Nozick agree that there has never been any general social contract whereby individuals at large acquire from one another positive rights to the protection of their pre-contractual rights. And, “… tacit consent isn’t worth the paper it’s not written on” (287). Hence, if people are to acquire rights to have their rights protected, they must (at least for the most part) go shopping for them.