30

OP, regarding post #8: Don't get the impression that's a drunk driving specific thing. It's the same deal with any misdemeanor or felony.
They won't ask you if you've ever had a drunk driving, in my experience, they will ask you if you've ever been convicted of a misdemeanor or above (or however it's worded).

31

The whole DUI thing is vastly overblown. It does happen but its not the big issue that travel writers needing something to get paid for make it out to be.

32

#31 is spot on, just don't mention it.

33

Canada liberalized its policy about crossing with a drunk driving last year. If you only have one drunk driving, they waive the fee for the TRP and issue it at the border fairly easily:

http://www.outdoornews.com/March-2012/Just-one-mistake-Then-welcome-back-to-Canada/

I wouldn't risk bringing packaged veggies across, but their country of origin is clear. I am a member of the Nexus program and go through a fast track lane crossing the border. As part of the training video that we had to take, they said it was legal to take your lunch into Canada or the US and showed a video of a woman opening her lunch sack and I thought there was an apple in the video. It is not worth betting secondary inspection and hassle on.

As a general rule the smaller the border crossing, the greater the hassle. The worst crossing I ever went through was crossing at a very small crossing into Saskatchewan. The guy was looking for reasons to exclude us. My wife and I were two fifty year olds. I was in the passenger seat which made him think I may have had a suspended license. (I didn't). I normally cross at Detroit (the largest border crossing) and never had any problem even before I had the Nexus card.

If your paperwork is in order, you look middle class, and your reason for crossing doesn't seem off, there is rarely any hassles.