I think you've been watching too much 'How I Met Your Mother'. haha.
Examples?
Barney: Ok, that's it. [stands up on top of chair] Attention, Canada. I'm Barney, from America, and I'm here to fix your backward-ass country. Number one, get real money. [shows Canadian dollar bill] Don't know what board game this came from, but it's a [in French accent] joke...
Robin: I am Canadian. Remember? We celebrate Thanksgiving in October.
Ted: Oh right I forgot. You guys are weird and you pronounce the word 'out', 'oot'.
Robin: You guys are the world's leader in hand gun violence; your health care system is bankrupt and your country is deeply divided on almost every important issue.
Ted: [pause] Your cops are called 'mounties'.
Lily: Ted, if you murder me and bury me in New Jersey, I'll hunt you forever.
Ted: But if I murder you and bury somewhere else?
Lily: Hey, I'll leave you alone. I'm sure you had your reasons
So yeah, Canada and NJ = America hates it.