[refurb]

Same here, Canadian citizen as well. I've been absolutely grilled by the Canadians, but never by the US side.

[brianwawok]

American and Canadians grill me more. What is my wife's birthday? How many days are we staying? What day of the week are we leaving?

American guard is like "do you have more than 5 bottles of wine you need to declare? No, cool"

[kahnpro]

I've never been grilled by either. But the Americans always ask mor questions. Canadians are "welcome home", Americans usually ask a few standard questions to probe my reasons but nothing approaching a grilling. Just a light toasting.

Contrast with Russian customs who looked at my passport and said "Canada? Okay go"

[kasey_junk]

I've found it varies dramatically by crossing point. As an American driving across the border I frequently get lots of questions on either side. Flying it has been full grilling to basically nothing on either side.

Flying into Toronto City airport I frequently just get a nod and hand wave.