Americans and Canadians are both the same except Canadians are different.
I have traveled across the border numerous times by both road and air. It's funny that you go through US immigration in Canada when traveling to the US...at least when flying from Toronto or Vancouver airports. (And what's with the airport improvement fee they stuff you with somewhere in "no-man's land?" I have never had a problem either way and I travel with a British passport and a US Green Card. I haven't driven across the border since 9/11 but that used to be a very easy and relaxed crossing.
I did sort of illegally enter Canada once. I was installing machine tools shipped from the UK (of German and UK origin) to a Canadian Auto-parts factory in Nova Scotia. I shipped all the tools I needed in the crates with the machines. It's always difficult entering countries on business if the business means "working" so I arrived in Halifax and said I was on "holiday" and visiting friends. All went well and after a weekend sight-seeing aound Cape Breton Island I commenced installation on Monday. Later in the week the Premier of Nova Scotia arrived to tour the facility and I met him and was filmed by a TV crew in blue coveralls with wrench in hand. I guess no-one from immigration recognized me from my 3 second appearance on TV.
I do feel very at home in Canada. There are plenty of ex-pat Brits there and plenty of British style products. I stock up on Canadian candy bars not available where I live and enjoy fish 'n chips 'n mushy peas.
Thirdson
PS Where can I get "Fusion" bars from on line?