Canadian door locks....
I think it varies by where you live. When I lock my doors, it is to keep my friends and drunk strangers from wandering in. The latter happened to Justin Trudeau one year before he became our Prime Minister [https://ottawacitizen.com/news/national/update-on-trudeau-break-in-probe-expected-tuesday].
I suspect Nova Scotia is mainly the same; but some areas of Canada are more paranoid and prone to spontaneous violence.
Biting the hand that feeds IT
