Extract the following from the Canadian passport application form, hopefully give you an idea what people are expecting you to fill in for "next of kin" (which usually use as your emergency contact person).
--------------------
8. Why is it important to fill out the emergency contact information on page 4 of my passport?
This information will enable consular officials to contact your next of kin in case of an emergency. You should provide the name of a person who would not normally accompany you while travelling.