Ex-girlfriend and I were driving from Winnipeg to Grand Forks, ND. We had just crossed the US border; and hadn't even gotten back to highway speed when a bunch of birds flew in front of the car. There was a THUNK as I happened to hit one of them. She said to me "Stupid American birds."
I asked her "How do you know those weren't Canadian birds?"
Her reply "Because were in the US now. Birds don't fly across the border."
And yes, she was being serious.