 This reading of possible end sharing might have implausible implications when incorporated into a principle according to which a person who uses another treats the other merely as a means if the other cannot share the end she is pursuing in using him (Kerstein 2013: 63). Consider young men hiking in the Rocky Mountains for the first time who find themselves on a mountain in late afternoon without water and unsure of the way down. To their relief, they spot another hiker, someone whom they saw park his car in the same area below. They follow him, using his knowledge of the terrain to get down the mountain safely. The young men realize that they could, but choose not to, tell the hiker that they are following him. Out of embarrassment for their dependence on him, they ensure that they remain undetected. The way they act prevents the man from choosing whether to contribute to the realization of their end. According to the notion of possible end sharing we are here considering, we might have to embrace a view that some find implausible: Since the hiker cannot share the young men’s end, they are treating him merely as a means and thereby acting wrongly. To avoid this implication, one might affirm the following: a person cannot share the end an agent pursues in using him if the agent’s behavior prevents the person from choosing whether to contribute to the realization of that end and the person has a right not to be prevented from making this choice (Papadaki 2016: 80). If the hiker fails to have a right not to be prevented from choosing whether to contribute to the young men getting safely down the mountain, then they do not treat him merely as a means according to the amended account. Of course, this amendment invites questions as to when a person has such a right, as well as making the account of treating others merely as means depend on an account of moral rights in a way that Korsgaard (or Kant) might not have intended. 