This State Department document provided by WikiLeaks should give everyone a good laugh:
“The degree of comfort with which Canadian broadcast entities, including those financed by Canadian tax dollars, twist current events to feed longstanding negative images of the U.S. — and the extent to which the Canadian public seems willing to indulge in the feast — is noteworthy as an indication of the kind of insidious negative popular stereotyping we are increasingly up against in Canada,” the cable said.
A trove of diplomatic cables, obtained by WikiLeaks and made available to a number of publications, disclose a perception by American diplomats that Canadians “always carry a chip on their shoulder” in part because of a feeling that their country “is condemned to always play ‘Robin’ to the U.S. ‘Batman.’ ” [via The Marmot's Hole]
You can read more at the link to include what Canada’s own intelligence director had to say about his country.
Personally I have only gone to British Columbia a few times when I was stationed at Ft. Lewis and had no issues. BC is a beautiful place just like the American Northwest. I have also worked with a number of Canadians in the military and never had any problems.
However, I did one time in Australia have a Aussie come up to me when he heard my American accent and he asked me if I was a North American? I told him yes I am from North America. He then asked which country and I told him I am from the United States. He then told me that he has to ask people he runs into that have an American accent if they are from North America because if he mistakenly asks a Canadian if they are from America some of them get snotty with him.
He then told me that it appeared the US relationship is much like Australia and New Zealand.