"And I'm a Canadian!" said my four-year-old niece from the back of the minivan. The three adults in the car---me, my husband, and my mother---had a laugh that we quickly tried to cover and convert into a pleased sort of "that's right, you're right" sort of chuckle. My niece Sonsie is a sensitive sort, and we all knew that if she felt laughed at, her pride would quickly evaporate into confused shame and hurt feelings. "You are!" said my mother, "You are a Canadian!" Later we repeated this story to my sister, who allowed herself one quick laugh and said, "Yes, the Canadian thing comes up pretty frequently these days. It's her Thing. Pretty much everything goes back to her being a Canadian." "I had no idea it was such a big deal to her, being Canadian," I said. "Oh no, not Canadian, a Canadian," my sister said, "Yeah, it's funny. She'll get a compliment, like nice outfit or good job and sh...