I'm from Canada - born and raised in Calgary for all 20 years of my life- my family's been here about as long as the natives - I think the family tree goes back about 8 generations. Further than that, I think it's scottish and english.
As for the "my natural tendency was to assume I was talking to a bunch of lily white men...hunched over computer screens...cackling at our collective wit", you're spot on with me
edit: wow, with your comment in TPBM thread, it seems that you know a lot about me...........
:unsure: