Oh, fun! I have been to Canada several times, and they always ask us why we went, what we brought back, but we've never gotten searched.
Everyone complains about airport security, but I'd rather fly than spend two days driving across the country at this time of year. Hopefully I don't get patted down by some butch lesbian.
I'd expect it (questions and searches) coming back into the country from Canada or Mexico, but still can't get used to being stopped and questioned at a permanently manned checkpoint after just getting CLOSE to the border (within 30-40 miles).