[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.