Canada didn't have to beat Team USA in the Olympic men's hockey semi-final before triggering a rivalry that has simmered since we won in 2010.

A rivalry that sparked the "F***Canada" hashtag on Twitter.

The hostility began Thursday, after Canada beat Team USA in women's hockey





We took it in stride





The Canadian women prevailing didn't stop the cross-border resentment from returning on Friday















Some of us were offended



Some of us were petty



Others made a joke of the whole thing









In the end, it's just a game. But if we can be serious for a moment...



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