While appeal to tacit consent is most familiar in the context of attempting to ground special political obligations, one could also use this notion in order to ground, for example, special obligations to friends. Again, however, one would have to show that friendship is a context that meets the conditions as described by Simmons, and it seems implausible to suppose that it is. Further, however, some would have a further objection to construing obligations of friendship as contractual: such a mod