Considerations of ethical questions regarding pets should take into account the nature of human-pet relationships, in particular the uniquely combined features of mutual companionship, quasi-family-membership, proximity, direct contact, privacy, dependence, and partiality. The approaches to ethical questions about pets should overlap with those of animal ethics and family ethics, and so need not represent an isolated field of enquiry, but rather the intersection of those more established fields. This intersection, and the questions of how we treat our pets, present several (...) unique concerns and approaches for focused examination. (shrink)