 Focusing on mutually voluntary associations, what kinds of associations do we have the right to consent to join? And, what kinds of conduct do we have the right to engage in as associates? For instance, can we have a right to voluntarily become a slave and our associate the master, an association that would deny us all prospects to make other associative decisions even if our master treats us kindly? Less radically, do we have a right to consent to harmful relations, such as sadomasochistic sexual relations, or to life-threatening connections, such as a marriage with a highly contagious asymptomatic carrier of typhoid or a marriage with a person who suffers from psychopathy? Our answers will depend partly on how we conceive of autonomy. If autonomous agency cannot be self-negating, then we cannot voluntarily enslave ourselves or enter self-destructive relations. But, if we can autonomously do things that eliminate all prospects for future autonomous agency such as seek voluntary euthanasia, then why could we not autonomously form associations that do or threaten the same thing?