Religion
Canadians have widely different religious beliefs, and like political beliefs, these often reflect vastly different opinions on fundamental questions about life and society. Many of the most common Canadian faiths were actually founded in explicit opposition to one another, and thus promote theories of God and salvation that are mostly incompatible, and may portray non-believers as heretics of some form or another.
People don’t like to be judged, so one’s religious views are rarely discussed openly in public, though Canadians are usually fine with openly self-identifying as a member of a particular faith. Beyond that, attempting to explain or promote one’s religious beliefs (or, for that matter, atheism) in any sort of uninvited setting is almost always regarded as preachy, irritating and cloyingly self-righteous.